### Various Uses of 'for' Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Covers multiple common interpretations of the preposition 'for', including purpose, price, and support. Provides examples for each usage. ```English This document is for your information only. ``` ```English I bought the book for 200 dollars. ``` ```English Are you for the tax cut? ``` -------------------------------- ### Using 'as for' for Topic Transition Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Explains the utility of 'as for' in writing for introducing new topics or contrasting items. Provides an example demonstrating its use. ```English I don't blame you. As for your friend, he has behaved very badly. ``` -------------------------------- ### Using 'at' for Price or Speed Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Illustrates the use of 'at' to specify a price or a rate/speed. Provides examples for tour costs and vehicle speed. ```English We joined the tour at $3,000 per person. ``` ```English The car was going at 90 km per hour. ``` -------------------------------- ### English S+V Sentence Pattern Examples Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-01-simple-sentences.md Illustrates the Subject + Verb (S+V) sentence pattern, typically involving intransitive verbs that do not require an object. Includes examples with phrasal verbs and adverbial modifiers, demonstrating how simple sentences are formed. ```English The dog barked at the mailman. S V I got up rather late this morning. S V ``` -------------------------------- ### Understanding Phrasal Verb 'go back on' Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Explains the phrasal verb 'go back on' in the context of breaking a promise or word. Provides an example sentence demonstrating its usage. ```English I promised my kid a new notebook, so I can't go back on my word now. ``` -------------------------------- ### Using 'on' for Spatial Surfaces Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Illustrates the use of 'on' to indicate position on a flat surface. Examples include sea surfaces, walls, and platforms. ```English I strained my eyes but couldn't see any ship on the sea. ``` ```English There’s a picture hanging on the wall. ``` ```English The speaker is standing on the platform. ``` -------------------------------- ### Using 'in' for Expression Method Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Demonstrates the use of 'in' to indicate the language or medium of expression. Provides examples for speaking in a language and signing with a specific ink color. ```English How do you say that in English? ``` ```English He signed his name in black ink. ``` -------------------------------- ### Using 'on' and 'along' for Spatial Lines Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Explains the use of 'on' and 'along' to describe locations or movements along a linear path or boundary. Provides examples for roads, beaches, and streets. ```English The student memorized 10 new words on his way to school. ``` ```English There are many beautiful villas along the beach. ``` ```English I see three bookstores on this street. ``` -------------------------------- ### English S+V+O+C Sentence Structure with Object Complements Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-01-simple-sentences.md Demonstrates the Subject + Verb + Object + Complement (S+V+O+C) sentence pattern, where the complement describes or renames the object. Provides examples and a test for identifying object complements by forming an S+V+C sentence from the object and its complement. ```English The man’s wife called him Honey. S V O C I find the purse pretty. The tip made the question easy. I consider the man quite a gentleman. The boss found your suggestion exciting. The bus ride made the woman dizzy. I find the wine sweet. The man’s poverty kept him single. The victory made the player professional. The doctor proclaimed the drug effective. The hit movie made the actor a big star. Most people consider a school teacher a good wife. ``` -------------------------------- ### Using 'but' as a Preposition (except) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Explains how 'but' can function as a preposition, meaning 'except'. Provides an example demonstrating this usage. ```English No one but(= except) a fool would accept a challenge like that. ``` -------------------------------- ### Common Uses of 'of' Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Explores various frequent uses of the preposition 'of', such as material composition, part-whole relationships, mental association, and possession/origin. Provides examples for each. ```English These shoes are made of rubber. ``` ```English Holland is a part of Europe. ``` ```English I think of you often. ``` ```English The arrival of the train caused a big stir on the platform. ``` -------------------------------- ### Understanding 'apart from' (except for, in addition to) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Details the dual meaning of 'apart from', which can signify 'except for' or 'in addition to'. Provides examples for both interpretations. ```English We had no trouble on the way apart from(= except for) a flat tire. ``` ```English Apart from(= in addition to) a flat tire, we also ran out of gas. ``` -------------------------------- ### Identifying Basic S+V Sentence Structure Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-01-simple-sentences.md Explains how to identify the Subject + Verb (S+V) sentence pattern by disregarding optional adverbs or modifiers. Provides an example of a simple S+V sentence. ```English The cat meowed pitifully. S V ``` -------------------------------- ### English S+V+O Sentence Pattern Examples Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-01-simple-sentences.md Demonstrates the Subject + Verb + Object (S+V+O) sentence pattern, primarily featuring transitive verbs that require an object. Also illustrates how the same verb can sometimes be used intransitively, showing context-dependent usage and the flexibility of verbs. ```English The dog bit the mailman. S V O Don’t worry. It doesn’t bite. S V ``` -------------------------------- ### Using 'at' for Spatial Points Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Details the use of the preposition 'at' to denote a specific point in space. Includes examples for locations, destinations, and aiming points, highlighting the subjective interpretation of 'point'. ```English The bus will stop at the dock to pick up passengers. ``` ```English We have arrived at our destination. ``` ```English The sniper is aiming at the kidnapper. ``` ```English The instructor points to the poster on the wall and says, "Never point your gun at anybody." ``` -------------------------------- ### Word Classes Functioning as Complements in English Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-01-simple-sentences.md Illustrates various word classes that can function as subject or object complements, including nouns, adjectives, adverbs of time, adverbs of place, and prepositional adverbs, with examples for both S+V+C and S+V+O+C patterns. ```English // Noun Complements: John is my best friend. S V C I consider John my best friend. S V O C // Adjective Complements: John looks happy. S V C The good news makes John happy. S V O C // Adverb of Time Complements: The final game is tonight. S V C The sponsors set the final game tonight. S V O C // Adverb of Place Complements: The key is there. S V C I left the key there. S V O C // Prepositional Adverb Complements: The plane is down. S V C The pilot brought the plane down. S V O C ``` -------------------------------- ### English S+V+O+O Sentence Pattern Examples and Transformations Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-01-simple-sentences.md Illustrates the Subject + Verb + Object + Object (S+V+O+O) sentence pattern, typically used with dative verbs that take two objects (recipient and direct object). Also shows the transformation to S+V+O when the recipient is expressed via a prepositional phrase, demonstrating alternative constructions for conveying the same meaning. ```English The man’s wife gave him a jar of honey. S V O O The man’s wife gave a jar of honey to him. S V O I teach my son English. S V O O I teach English to my son. S V O ``` -------------------------------- ### English S+V+C Sentence Structure with Linking Verbs Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-01-simple-sentences.md Illustrates the Subject + Verb + Complement (S+V+C) sentence pattern where the verb is a linking verb (e.g., be, look, seem, feel, taste). The complement describes or renames the subject. Includes examples demonstrating how linking verbs can be substituted with 'be' verbs. ```English The dog was a bulldog. S V C The dog was mean. S V C That purse looks pretty. The question seems easy. Your friend appears quite a gentleman. Your suggestion sounds exciting. The woman feels dizzy. The wine tastes sweet. The man remains single. The player turned professional. The drug proved effective. The actor became a big star. A school teacher makes a good wife. // Test with 'be' verb substitution: That purse is pretty. The question is easy. Your friend is quite a gentleman. Your suggestion is exciting. The woman is dizzy. The wine is sweet. The schoolmates were friends for life. The man is single. The player was professional. The drug was effective. The actor was a big star. A school teacher is a good wife. ``` -------------------------------- ### Subject-Verb Agreement with 'Half of' and Other Quantifiers Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section demonstrates that 'half of' takes a singular verb when referring to a singular noun and a plural verb for plural nouns. It also includes additional examples for 'some of', 'most of', and 'more of' to show their agreement patterns. ```English Half of the cake has been eaten. ``` ```English Half of the participants have finished the marathon now. ``` ```English Some of the time was spent on looking for tools. ``` ```English Most of my high school classmates are in college now. ``` ```English More of the blame is on me than on you. ``` -------------------------------- ### Using Infinitives with Present Participles for Continuous Actions Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-24-noun-clauses-reduced.md Demonstrates how infinitive phrases can incorporate present participles to express continuous actions. Examples show both cases where the subject is the same as the main clause and where it's a different subject, leading to an S + V + O + C structure. ```English Grammar 1. I don’t want [to be sitting here all day]. S V O Simplified Noun Clause I don’t want [that I should be sitting here all day]. S V O Noun Clause 2. I don’t want you to be sitting here all day. S V O C I don’t want [that you should be sitting here all day]. S V O Noun Clause ``` -------------------------------- ### Achieving Parallelism with 'Like' Clauses Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-06-comparative-pattern.md This example illustrates the importance of parallel structure when using the preposition 'Like' for comparison. It shows the error of comparing a person to an object and provides two correct methods: comparing a person to a person, or comparing an object to an object by using a possessive form that implies the omitted noun. ```English Like Shakespeare, Keats' poetry is a true reflection of life. ``` ```English Like Shakespeare, Keats wrote poetry that is a true reflection of life. ``` ```English Like Shakespeare's, Keats' poetry is a true reflection of life. ``` -------------------------------- ### English Grammar: Reducing Adverbial Clauses to 'So as to' Infinitive Phrases Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md This example illustrates the simplification of an adverbial clause of purpose, originally introduced by 'so that', into a 'so as to' infinitive phrase. This transformation involves omitting the subject and reducing the auxiliary verb to 'to', similar to 'in order to'. ```English Grammar Example (Original) The boy left home early [so that he could be in time for the concert]. ``` ```English Grammar Example (Simplified) The boy left home early [so as to be in time for the concert]. ``` -------------------------------- ### Figurative Use of Spatial Prepositions Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Explores how spatial prepositions are used metaphorically to express abstract concepts rather than literal physical space. Provides examples like 'beneath contempt', 'beyond comprehension', 'beside the point', and 'within one's income'. ```English That shameless man is beneath contempt. ``` ```English What the lecturer is saying is quite beyond my comprehension. ``` ```English His objection is quite beside the point. ``` ```English It's sometimes difficult to live within one's income. ``` -------------------------------- ### Correcting Non-Parallel Comparisons: Video Games and Pronoun Usage Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-06-comparative-pattern.md This example addresses the incorrect use of personal pronouns in comparative clauses, which can lead to non-parallel structures. It shows how to correctly compare similar items (video games) by explicitly stating the full noun phrase or by using the demonstrative pronoun 'those' to maintain parallelism and clarity. ```English Video games developed by this project team are more exciting than they are by any other team in this company. ``` ```English Video games developed by this project team are more exciting than video games developed by any other team in this company are. ``` ```English Video games developed by this project team are more exciting than video games developed by any other team in this company. ``` ```English Video games developed by this project team are more exciting than those by any other team in this company. ``` -------------------------------- ### Ensuring Parallelism with 'Compared with' Clauses Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-06-comparative-pattern.md This example demonstrates how to maintain parallel structure when using 'Compared with' clauses, even without explicit comparative adjectives. It highlights the error of comparing dissimilar entities (crime rates vs. residents) and provides two correct alternatives: comparing crime rates to crime rates (using 'those') or residents to residents. ```English Compared with the high crime rates of New York, Beijing residents live in a much safer environment. ``` ```English Compared with the high crime rates of New York, those of Beijing are much lower. ``` ```English Compared with residents of New York, where crime rates are high, Beijing residents live in a much safer environment. ``` -------------------------------- ### Relative Clauses with 'which' or 'that' in Object Position (Things) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-19-relative-clauses.md This section explains the construction of relative clauses for non-human antecedents where 'which' or 'that' serve as the object of the relative clause. It illustrates the optional omission of the relative pronoun in this position, providing examples with and without the pronoun. ```English The movie which I saw last night was excellent. The movie that I saw last night was excellent. The movie I saw last night was excellent. ``` -------------------------------- ### Correcting Non-Parallel Comparisons: Prices vs. Country Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-06-comparative-pattern.md This example illustrates a common error in English comparative sentences where an abstract concept (prices) is incorrectly compared with a concrete location (England). It demonstrates several methods to achieve parallel structure, including explicit repetition, omission of repeated verbs, use of demonstrative pronouns ('those'), and strategic omission of pronouns while retaining prepositions. ```English Prices of papayas in Thailand, where the fruit is produced in abundance, are much lower than England, where it must be imported. ``` ```English Prices of papayas in Thailand are much lower than prices of papayas in England are. ``` ```English Prices of papayas in Thailand are much lower than prices of papayas in England. ``` ```English Prices of papayas in Thailand are much lower than those in England. ``` ```English Prices of papayas in Thailand are much lower than in England. ``` -------------------------------- ### Using 'whose' or 'of which' for Possessive Relative Clauses (Things) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-19-relative-clauses.md This snippet covers the two primary methods for expressing possession in relative clauses when the antecedent is a non-human entity. It demonstrates the use of 'whose' (borrowed from human antecedents) and the more formal 'of which' construction, providing examples for both. ```English I saw a mountain whose top was completely covered in snow. I saw a mountain the top of which was completely covered in snow. I saw a mountain of which the top was completely covered in snow. ``` -------------------------------- ### English Grammar: Participle Phrase as Non-Restrictive Modifier or Adverbial Clause (Mid-Sentence, With Commas) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md This example demonstrates a participle phrase enclosed by commas in mid-sentence. It can be interpreted as a non-restrictive relative clause, providing additional, non-essential information about the noun, or as a reduced adverbial clause, indicating circumstances like time or reason. ```English Grammar Example The teacher, [entering the classroom], greeted the students. ``` -------------------------------- ### English Grammar: Identifying and Correcting Dangling Modifiers Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md This section explains the common grammatical error known as a 'dangling modifier,' which occurs when the implied subject of a reduced adverbial clause (participle phrase) does not match the subject of the main clause. It provides examples of incorrect usage and demonstrates two methods for correction: restoring the original adverbial clause or changing the main clause's subject to match. ```English Grammar Example (Incorrect) [Trying to keep the boat afloat in the storm], a lot of cargo was jettisoned. ``` ```English Grammar Example (Corrected) [Because the sailors were trying to keep the boat afloat in the storm], a lot of cargo was jettisoned. ``` ```English Grammar Example (Corrected) [Trying to keep the boat afloat in the storm], the sailors jettisoned a lot of cargo. ``` ```English Grammar Example (Incorrect) This new medicine cannot really cure a patient [unless treated in the earliest stages of lung cancer]. ``` ```English Grammar Example (Corrected) This new medicine cannot really cure a patient [unless administered in the earliest stages of lung cancer]. ``` -------------------------------- ### Using 'at', 'in', and 'on' for Time Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Explains the usage of 'at' for specific time points, 'in' for longer periods, and 'on' for specific days or dates. Highlights common exceptions and language habits. ```English I’ll meet you at six o’clock. ``` ```English I do most of my work in the morning. ``` ```English My birthday is on January 23. ``` ```English The accident happened on the morning of June 20. ``` -------------------------------- ### Using 'in' for Spatial Volumes Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-07-prepositions.md Demonstrates the use of 'in' to describe being inside a three-dimensional space or volume. Contrasts with 'at' when the same location is viewed as a point, and 'on' when a street is viewed as a line versus a volume. ```English I like to stay in my office because it's quiet there. ``` ```English We'll go our separate ways, and meet at my office at three. ``` ```English I think I'll walk; there are too many cars in the street. ``` -------------------------------- ### Present Unreal Conditional: Expressing Wishes and Alternatives Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-12-moods.md This section illustrates various ways to express present unreal conditions, including polite forms and strong desires. It shows how 'should like' can be used to express a polite wish, and how 'had' and 'could fly' convey a strong, unreal desire. Furthermore, it demonstrates the use of 'suppose' as an alternative to 'if' for introducing a hypothetical scenario. ```English I should like to give it a try, if I knew how. ``` ```English If I had wings, I could fly to your side. ``` ```English Suppose you had three wishes, what would you wish for? ``` -------------------------------- ### Simplification with Dummy 'It' in SVOC Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-24-noun-clauses-reduced.md Shows the simplification of a noun clause that provides content for a dummy 'it' in an S + V + O + C structure. The noun clause's subject is the same as the main clause's subject, allowing for simplification to an infinitive phrase. ```English Grammar I consider it my duty [that I should support my daughter through college]. S V O C Noun Clause I consider it my duty [to support my daughter through college]. S V O C Simplified Noun Clause ``` -------------------------------- ### Subject-Verb Agreement with Quantifiers (Every, Each, Either, Neither, Many A) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section explains how quantifiers like 'every', 'each', 'either', 'neither', and 'many a' dictate singular verb forms, even when they appear to refer to multiple items. It also clarifies the role of 'each' as a modifier versus a subject. Understanding these rules is crucial for accurate sentence construction. ```English Every day is a new beginning. ``` ```English Each participant is entitled to a memorial pin. ``` ```English Each of the participants is entitled to a memorial pin. ``` ```English They have to pay five dollars each to enter the theme park. ``` ```English Either way is fine with me. ``` ```English Either of the ways is fine with me. ``` ```English Neither solution looks attractive. ``` ```English Neither of the solutions looks attractive. ``` ```English Many a student has felt the urge to cheat in exams. ``` -------------------------------- ### Simplifying Noun Clauses to Infinitives (Same Subject) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-24-noun-clauses-reduced.md Demonstrates the basic simplification of a noun clause acting as an object into an infinitive phrase when the subject of the noun clause is the same as the main clause's subject, omitting the redundant subject and conjunction. ```English Grammar I hope [that I can get a raise next month]. S V O Noun Clause I hope [to get a raise next month]. S V O Simplified Noun Clause ``` -------------------------------- ### Simplify Adverbial Clause to Participle Phrase (Same Subject, Time/Condition, Conjunction Retained) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md Illustrates simplifying an adverbial clause of time or condition with a shared subject. The ordinary verb 'see' becomes 'seeing'. The conjunction 'when' is retained for clarity, implying 'whenever'. ```English [When you see an old person on the bus], offer your seat to him. ``` ```English [When seeing an old person on the bus], offer your seat to him. ``` -------------------------------- ### Comparing SVO C and SVO O Structures with Infinitives Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-24-noun-clauses-reduced.md Compares two seemingly similar sentences to highlight the fundamental difference between an S + V + O + C structure (where the infinitive modifies the object) and an S + V + O + O structure (where the infinitive is a second object). It clarifies how the subject of the infinitive is determined by the underlying noun clause in each case. ```English Grammar 1. I want you to go. S V O C I want [that you should go]. S V O Noun Clause 2. I promised you to go. S V O O I promised you that I would go. S V O O Noun Clause ``` -------------------------------- ### Relative Clauses with 'which' or 'that' in Complement Position (Things) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-19-relative-clauses.md This section illustrates how to form relative clauses where 'which' or 'that' act as a complement to the object. It explains the interchangeability of 'which' and 'that' and the optional omission of the relative pronoun when it functions as a complement. ```English The name which John calls his dog is a rea​​lly odd one. The name that John calls his dog is a rea​​lly odd one. The name John calls his dog is a rea​​lly odd one. ``` -------------------------------- ### Simplify Adverbial Clause to Participle Phrase (Same Subject, Be Verb to Being, Conjunction Omitted) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md Explains an alternative simplification where the 'be' verb becomes 'being' and the conjunction 'while' is omitted. This often requires adding an adverb like 'still' in the main clause to maintain the logical relationship of concession. ```English [While I am only a student], I want to marry you now. ``` ```English [Being only a student], I still want to marry you now. ``` -------------------------------- ### English Grammar: Reducing Adverbial Clauses to 'In order to' Infinitive Phrases Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md This snippet demonstrates how an adverbial clause of purpose, typically introduced by 'in order that' and containing a modal auxiliary, can be simplified into an 'in order to' infinitive phrase. The simplification involves omitting the subject and reducing the auxiliary verb to 'to'. ```English Grammar Example (Original) The student studied hard [in order that he could get a scholarship]. ``` ```English Grammar Example (Simplified) The student studied hard [in order to get a scholarship]. ``` -------------------------------- ### Present Unreal Conditional: Basic Structure and Inversion Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-12-moods.md This section explains the basic structure of present unreal conditional sentences, often referred to as Type 2 conditionals. It details the use of 'if + past simple' in the conditional clause and 'would/could/might + base verb' in the main clause for hypothetical present situations. Additionally, it covers the inverted form where 'if' is omitted and 'were' or an auxiliary verb is moved to the beginning of the conditional clause. ```English If I were you, I would accept the offer. ``` ```English Were I you, I would accept the offer. ``` ```English He might be able to help if he were here. ``` ```English Were he here, he might be able to help. ``` -------------------------------- ### Subject-Verb Agreement with 'And' Conjunction Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section explores the rules for subject-verb agreement when 'and' connects subjects. While typically requiring a plural verb, exceptions arise when 'and' joins elements that form a single unit or concept, or when 'every'/'each' precedes the nouns. The number of determiners (like 'a' or 'the') is key to identifying whether a single or multiple subjects are present. ```English A digital camera and an expensive watch were stolen. ``` ```English All work and no play makes Jack a dull boy. ``` ```English Every man and every woman has to make sacrifices for the war. ``` ```English A black and white cat is perched on the windowsill. ``` ```English A black and a white cat are chasing after a mouse. ``` ```English The famous poet and philosopher is giving a lecture tonight. ``` ```English A knife and fork is wrapped up in a paper towel. ``` ```English Oil and water do not mix. ``` -------------------------------- ### Simplify Adverbial Clause to Participle Phrase (Same Subject, Cause) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md Demonstrates simplifying an adverbial clause of cause where the subject is the same as the main clause. The conjunction 'because' is omitted as the participle phrase inherently conveys the cause. ```English [Because he was itching to be playing again], the boy inserted more coins. ``` ```English [Itching to be playing again], the boy inserted more coins. ``` -------------------------------- ### Transforming Noun Clauses to SVOC (Different Subject) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-24-noun-clauses-reduced.md Illustrates how a noun clause acting as an object, with a subject different from the main clause, can be transformed into an S + V + O + C structure. This involves placing the noun clause's subject in the object position and simplifying its verb to an infinitive. ```English Grammar I would like [that you can go to the concert with me]. S V O Noun Clause I would like you to go to the concert with me. S V O C ``` -------------------------------- ### Inversion with Initial Negative Adverbs for Emphasis Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-21-inversion.md When a negative adverb (e.g., 'never', 'seldom', 'hardly ever', 'not until', 'only' with a negative implication) is moved to the beginning of a sentence for emphasis, verb inversion occurs. If an auxiliary or 'be' verb is present, it inverts with the subject. If only an ordinary verb is present, the auxiliary 'do' (or 'does', 'did') is added and inverted to maintain the negative sentence structure. ```English I will never trouble you again. ``` ```English Never will I trouble you again. ``` ```English The train is seldom delayed. ``` ```English Seldom is the train late. ``` ```English The man hardly ever leaves home after 9 p.m. ``` ```English Hardly ever does the man leave home after nine. ``` ```English The doctor did not leave the patient [until he was sure everything was all right]. ``` ```English [Not until he was sure everything was all right] did the doctor leave the patient. ``` ```English The Johnsons went abroad only last week. ``` ```English Only last week did the Johnsons go abroad. ``` ```English Only Mr. Johnson went abroad last week. ``` -------------------------------- ### Subject-Verb Agreement with 'A pair of' and Plural Nouns Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section explains that 'a pair of' is a singular noun phrase and requires a singular verb, while 'three pairs of' requires a plural verb. It also covers direct use of plural nouns like 'shoes' which always take a plural verb. ```English A pair of shoes is left outside the door. ``` ```English Three pairs of shoes are left outside the door. ``` ```English These shoes were new. ``` -------------------------------- ### Simplify Adverbial Clause to Participle Phrase (Same Subject, Be Verb Omitted, Conjunction Retained) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md Shows simplification when the adverbial clause contains a 'be' verb and a noun complement. If the subject and 'be' verb ('I am') are omitted, the conjunction 'while' must be retained to indicate the original adverbial clause structure and prevent misinterpretation of the remaining noun phrase. ```English [While I am only a student], I want to marry you now. ``` ```English [While only a student], I want to marry you now. ``` -------------------------------- ### English Grammar: Reducing Adverbial Clauses to 'So... as to' Infinitive Phrases Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md This snippet demonstrates the simplification of an adverbial clause expressing degree, typically introduced by 'so... that', into a 'so... as to' infinitive phrase. This reduction is used to modify an adjective or adverb, indicating the extent or result of a quality. ```English Grammar Example (Original) The air in the city is so polluted [that it may be dangerous to health]. ``` ```English Grammar Example (Simplified) The air in the city is so polluted [as to be dangerous to health]. ``` -------------------------------- ### Simplify Adverbial Clause to Participle Phrase (Same Subject, Time, Conjunction Retained as Preposition) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md Shows retaining the conjunction 'after' when simplifying an adverbial clause of time. In this case, 'after' functions as a preposition, taking the gerund phrase 'graduating from college' as its object, which is grammatically acceptable. ```English [After he graduated from college], he found himself unemployed. ``` ```English [After graduating from college], he found himself unemployed. ``` -------------------------------- ### Inversion for Conciseness in Short Answers ('So do I', 'Neither will I') Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-21-inversion.md This type of inversion is used in elliptical sentences or short answers to avoid repetition, particularly when the predicate is identical to a preceding statement. The adverb 'so' (for affirmative) or 'neither' (for negative) is placed at the beginning, followed by an inverted auxiliary or 'be' verb, or 'do' for ordinary verbs, and then the subject. This structure enhances conciseness and clarity. ```English He likes basketball. So do I. ``` ```English He can speak Spanish. So can I. ``` ```English He is a teacher. So am I. ``` ```English He won’t give up. Neither will I. ``` -------------------------------- ### Subject-Verb Agreement with 'None of' Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section explains the agreement rules for 'none of'. It shows that 'none of' takes a singular verb with uncountable nouns, and can take either a singular or plural verb when used with plural countable nouns. ```English None of the meat was left. ``` ```English None of the sandwiches was fresh. ``` ```English None of the restaurants were open. ``` -------------------------------- ### Simplify Adverbial Clause to Participle Phrase (Different Subject, Independent Phrase) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md Illustrates simplifying an adverbial clause where the subject ('it') is different from the main clause subject and cannot be omitted. The 'be' verb becomes 'being', and the conjunction 'as' must be omitted to achieve conciseness. This construction is known as an 'independent phrase' in traditional grammar. ```English [As it was rather late], the rescue workers decided to quit. ``` ```English [it being rather late], the rescue workers decided to quit. ``` -------------------------------- ### Subject-Verb Agreement with Partitive Quantifiers Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section illustrates how partitive quantifiers such as 'part of', 'one-third of', 'some of', and 'most of' determine subject-verb agreement. The verb form depends on the singularity or plurality of the noun they refer to. ```English Part of the difficulty lies in communication. ``` ```English One-third of the products were defective. ``` ```English Some of the meat has gone bad. ``` ```English Most of the work has been completed. ``` -------------------------------- ### Grammar Symbols Definition Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-01-simple-sentences.md Defines the common symbols used in English sentence pattern analysis: Subject (S), Verb (V), Object (O), and Complement (C). These symbols are fundamental for understanding the structure of basic English sentences. ```Chinese S：主语 V：动词 O：宾语 C：补语 ``` -------------------------------- ### Simplifying 'There Is/Are' Noun Clauses Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-24-noun-clauses-reduced.md Explains how noun clauses using the 'there is/are' construction can be simplified into infinitive phrases while retaining the 'there' structure to express existence. ```English Grammar I want [that there will be no mistake]. S V O Noun Clause I want [there to be no mistake]. S V O Simplified Noun Clause ``` -------------------------------- ### Past Unreal Conditional: Structure, Inversion, and Factual Contrast Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-12-moods.md This section details the structure of past unreal conditional sentences (Type 3), used for hypothetical situations in the past. It explains the use of 'if + past perfect' and 'would/could/might + have + past participle', and demonstrates the inverted form where 'if' is omitted and 'had' is moved to the beginning. The section also contrasts these unreal statements with their factual past counterparts. ```English If the landslide had occurred a few seconds later, the bus could have passed through safely. ``` ```English Had the landslide occurred a few seconds later, the bus could have passed through safely. ``` ```English The accident could have been prevented if the driver had been more careful. ``` ```English The accident happened because the driver was not careful. ``` ```English Had the driver been more careful, the accident could have been prevented. ``` -------------------------------- ### Forming Relative Clauses with 'who' or 'that' in Complement Position Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-19-relative-clauses.md This snippet explains how to construct relative clauses where the relative pronoun functions as a complement to the subject. It demonstrates the use of 'who' and 'that' for human antecedents and illustrates the optional omission of the relative pronoun when it serves as a complement. ```English After the stroke, John is not the man who he used to be. After the stroke, Joh is not the man he used to be. After the stroke, Joh is not the man that he used to be. ``` -------------------------------- ### Simplify Adverbial Clause to Participle Phrase (Different Subject, Result, Implicit Subject) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md Explains simplifying an adverbial clause of result where the subject of the adverbial clause ('this') refers to the entire main clause. The subject 'this' and conjunction 'so' are omitted, and the verb 'caused' becomes 'causing', forming a resultative participle phrase. ```English Two Vietnamese patients died from avian flu, [so this caused widespread panic in Southease Asia]. ``` ```English Two Vietnamese patients died from avian flu, [causing widespread panic in Southease Asia]. ``` -------------------------------- ### Subject-Verb Agreement with 'A lot of' and 'Lots of' Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section demonstrates that 'a lot of' and 'lots of' can be used with both countable plural nouns and uncountable singular nouns. The verb agreement follows the noun that these quantifiers modify. ```English A lot of mistakes were made because of the time pressure. ``` ```English Lots of the credit goes to the project manager. ``` -------------------------------- ### Distinguishing 'A number of' and 'The number of' for Agreement Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section clarifies the difference in subject-verb agreement between 'a number of' and 'the number of'. 'A number of' functions as a quantifier requiring a plural verb, while 'the number of' refers to a singular count and requires a singular verb. ```English A number of major earthquakes happen every year. ``` ```English The number of major earthquakes last year was five. ``` -------------------------------- ### Simplify Adverbial Clause to Participle Phrase (Same Subject, Time, Conjunction Omitted) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md Demonstrates simplifying an adverbial clause of time with a shared subject. The verb 'graduated' becomes 'graduating'. The conjunction 'after' can be omitted if the meaning remains clear and the temporal relationship is still implied. ```English [After he graduated from college], he found himself unemployed. ``` ```English [Graduating from college], he found himself unemployed. ``` -------------------------------- ### Inversion in Relative Clauses with 'There is/are' Like Structures Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-21-inversion.md This section explains how inversion can occur in relative clauses when a locative adverbial phrase (e.g., 'in which') is moved to the beginning. If the clause structure resembles a 'there is/are' construction, the verb can be inverted with the subject. This inversion is not possible if the clause does not fit this specific pattern. ```English The amazon is a pristine river [in which the deadly pirana roam]. ``` ```English The amazon is a pristine river [in which roam the deadly pirana]. ``` ```English The Amazon is a pristine river [which environmentalists love]. ``` -------------------------------- ### Subject-Verb Agreement with 'Both...and' Conjunction Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section explains that the 'both...and' construction invariably indicates a compound subject comprising two distinct entities. Consequently, the verb must always be in its plural form. This rule is straightforward and has no common exceptions. ```English Both the poet and the philosopher are giving a lecture tonight. ``` -------------------------------- ### Using Infinitives with Past Participles for Passive Voice Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-24-noun-clauses-reduced.md Illustrates how infinitive phrases can be formed using past participles to express passive voice. This is particularly shown in an S + V + O + C structure where the object is the subject of the passive action. ```English Grammar I want [that this should be done as soon as possible]. S V O Noun Clause I want this to be done as soon as possible. S V O C ``` -------------------------------- ### Inversion with Auxiliary or 'Be' Verbs in Conditional Clauses Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-21-inversion.md This type of inversion applies to hypothetical conditional clauses where an auxiliary verb (like 'had') or a 'be' verb (like 'were') is present. By moving the auxiliary or 'be' verb to the beginning of the clause, the conjunction 'if' can be omitted, achieving a more concise rhetorical effect. This inversion is not applicable to clauses with only ordinary verbs. ```English [If I had been there], I could have prevented the accident. ``` ```English [Had I been there], I could have prevented the accident. ``` ```English [If I were a millionaire], I would first buy a big house. ``` ```English [Were I a millionaire], I would first buy a big house. ``` ```English [If I knew how], I would gladly do it. ``` -------------------------------- ### English Grammar: Participle Phrase as Object Complement (End of Sentence, No Comma) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md This snippet shows a participle phrase at the end of a sentence without a preceding comma. In this construction, the participle phrase functions as an object complement, modifying the direct object and describing its state or action. ```English Grammar Example The teacher greeted the students [entering the classroom]. ``` -------------------------------- ### Distinguishing 'Less' and 'Fewer' for Countable/Uncountable Nouns Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section clarifies the correct usage of 'less' for uncountable nouns and 'fewer' for countable nouns in comparative contexts. It highlights common errors where 'less' is incorrectly used with countable nouns. ```English Less money was spent on education than on national defense. ``` ```English Fewer people go to the U.S. to study now than 10 years ago. ``` -------------------------------- ### Subject-Verb Agreement with 'Or' Conjunction Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section details subject-verb agreement when 'or' connects subjects. The verb typically agrees with the subject closest to it in the sentence. For interrogative sentences, it's often helpful to mentally expand the shortened clauses to determine the correct verb form for agreement. ```English John or his friends are going to bring the wine. ``` ```English Is John or his friends going to bring the wine? ``` -------------------------------- ### Relative Clauses with 'which' or 'that' as Object of Preposition (Things) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-19-relative-clauses.md This snippet details the formation of relative clauses where 'which' or 'that' are the object of a preposition. It shows two common structures: preposition + relative pronoun, or relative pronoun + preposition at the end of the clause, and discusses the optional omission when the preposition is at the end. ```English My favorite movies are those in which all ends well. That chair on which you are sitting is an antique. That chair which you are sitting on is an antique. That chair you’re sitting on is an antique. That chair that you’re sitting on is an antique. ``` -------------------------------- ### Subject-Verb Agreement with 'All' Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section explains how the quantifier 'all' determines subject-verb agreement based on whether it modifies a countable plural noun or an uncountable singular noun, both when used directly and with 'of'. ```English All the students have gone on the trip. ``` ```English All the money has been put in the bank. ``` ```English All of the students have gone on the trip. ``` ```English All of the money has been put in the bank. ``` -------------------------------- ### Subject-Verb Agreement with Intervening Prepositional Phrases Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-20-subject-verb-agreement.md This section clarifies that a verb's number is determined by its true subject, not by nouns within an intervening prepositional phrase. It emphasizes ignoring such phrases when identifying the subject. However, for 'empty' quantifiers like 'all' or 'some', the noun in the prepositional phrase does determine the verb's number. ```English John together with his family is on vacation in Florida. ``` ```English The list of Presidential candidates is in today's newspapers. ``` ```English Monkeys in this national park are a menace to visitors. ``` -------------------------------- ### English Grammar: Participle Phrase as Restrictive Modifier (Mid-Sentence, No Comma) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md This snippet illustrates how a participle phrase placed mid-sentence without commas functions as a restrictive modifier, similar to a restrictive relative clause. It specifies or identifies the noun it modifies, indicating essential information. ```English Grammar Example The teacher [entering the classroom] greeted the students. ``` ```English Grammar Example The teacher [who entered the classroom] greeted the students. ``` -------------------------------- ### Using 'whose' for Possessive Relative Clauses with Human Antecedents Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-19-relative-clauses.md This section illustrates the formation of possessive relative clauses using 'whose' when the antecedent is a person and the dependent clause contains a possessive element referring to that person. It emphasizes that 'whose' cannot be omitted or replaced by other forms. ```English Jack is a man whose judgment I trust. ``` -------------------------------- ### Expressions for Unreal Present Wishes and Obligations Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-12-moods.md This section focuses on common English expressions used to convey wishes, regrets, or a sense of urgency about present situations that are contrary to fact. It includes 'if only' for strong wishes, 'wish + past simple' for expressing desires that are not currently true, and 'it's time + past simple' to indicate that something should happen now but hasn't. ```English If only she loved me, too! ``` ```English I wish I had the money! ``` ```English It’s time you started living on your own. ``` -------------------------------- ### Relative Clauses with 'which' or 'that' in Subject Position (Things) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-19-relative-clauses.md This snippet demonstrates how to form relative clauses for non-human antecedents where the relative pronoun ('which' or 'that') functions as the subject of the relative clause. It explains the interchangeability of 'which' and 'that' in this context and highlights that subject relative pronouns cannot be omitted. ```English I like movies which make me think. I like movies that make me think. ``` -------------------------------- ### English Grammar: Participle Phrase as Reduced Adverbial Clause (End of Sentence, With Comma) Source: https://github.com/liby/advanced-grammar/blob/main/src/content/docs/chapter-25-adverb-clauses-reduced.md When a participle phrase appears at the end of a sentence preceded by a comma, it typically functions as a reduced adverbial clause. It modifies the main clause, often indicating time, cause, or concession, and its implied subject is usually the subject of the main clause. ```English Grammar Example The teacher greeted the students, [entering the classroom]. ``` === COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.