The LanGeek Grammar Library is the largest and most comprehensive online resource for learning English grammar. It’s designed for learners, teachers, and language enthusiasts who want to explore every aspect of English, from basic sentence structure to advanced linguistic concepts.
Each topic is carefully organized into categories that explain how English works in real use, with clear examples, accessible explanations, and practical guidance. Whether you’re studying parts of speech, tenses, or complex clause structures, you’ll find detailed lessons that make grammar both understandable and useful.
With hundreds of topics covering everything from nouns and verbs to punctuation, morphology, and sentence construction, LanGeek provides the depth of a full grammar textbook combined with the clarity of an interactive learning platform.
Below is the complete list of sections included in the LanGeek Grammar Library. Each section can be explored individually for in-depth lessons and examples.
1) Pronouns
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Overview: Pronouns
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Personal Pronouns
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Subject Pronouns
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Object Pronouns
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Reflexive Pronouns
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Demonstrative Pronouns
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Emphatic Pronouns
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Interrogative Pronouns
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Possessive Pronouns
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Indefinite Pronouns
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Dummy Pronouns
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Reciprocal Pronouns
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Relative Pronouns
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Impersonal Pronouns
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Nominal Relative Pronouns
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Archaic Pronouns
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Distributive Pronouns
2) Tenses
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Overview: Tenses and Aspects
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Present Simple
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Past Simple
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Future Simple
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Present Continuous
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Past Continuous
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Future Continuous
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Present Perfect
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Present Perfect Continuous
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Past Perfect
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Past Perfect Continuous
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Future Perfect
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Future Perfect Continuous
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Future with “going to”
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Past with “going to”
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Talking about the Present
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Talking about the Past
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Talking about the Future
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Aspects
3) Nouns
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Overview: Nouns
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Proper and Common Nouns
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Countable and Uncountable Nouns
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Singular and Plural Nouns
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Plural-Only Nouns
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Collective Nouns
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Abstract and Concrete Nouns
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Gender-Specific Nouns
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Noun Modifiers
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Possessive Form of Nouns
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Compound Nouns
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Gerunds
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Verbal Nouns
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Nominal Adjectives
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Noun Clauses
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Gerund Phrases
4) Verbs and Voices
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Overview: Verbs
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Regular and Irregular Verbs
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Actions and States
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Auxiliary Verbs
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Light Verbs
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Transitivity
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Intransitive Verbs
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Linking Verbs
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Mono-transitive Verbs
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Ditransitive Verbs
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Complex Transitive Verbs
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Ergative Verbs
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Catenative Verbs
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Causatives
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Reflexive Verbs
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Phrasal Verbs
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Voices
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Active Voice
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Passive Voice
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Archaic Verb Conjugation
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Be
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Do
5) Moods
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Overview: Moods and Modality
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Declarative Mood
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Imperative Mood
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Subjunctive Mood
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Interrogative Mood
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Exclamatory Mood
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Conditional Mood
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Zero Conditional
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Conditional I
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Conditional II
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Conditional III
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Mixed Conditional
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6) Modals and Semi-modals
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Overview: Modals
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Can and Could
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May and Might
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Will and Would
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Shall and Should
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Must and Have to
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Can, May, Should (contrast and use)
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Semi-modals
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Ought to and Had Better
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Dare and Need
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Used to
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Meanings and Uses with Modality
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Prediction
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Willingness
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Abilities
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Permission
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Possibilities
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Necessity
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Advice
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Deduction
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Habits
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Offers
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Requests
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Assumptions
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Modal Expressions
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Modals in Indirect Speech
7) Adjectives
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Overview: Adjectives
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Adjective Placement and Order
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Attributive and Predicative Adjectives
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Postpositive Adjectives
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Descriptive and Relational Adjectives
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Comparative and Superlative Adjectives
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Gradable and Ungradable Adjectives
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Proper Adjectives
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Compound Adjectives
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Participle Adjectives
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Comparable and Non-comparable Adjectives
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Adjective Clauses
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Types of Adjectives
8) Adverbs
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Overview: Adverbs
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Adverb Placement and Order
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Comparative and Superlative Adverbs
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Types of Adverbs
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Place
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Time
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Frequency
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Manner
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Degree
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Probability
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Movement and Direction
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Demonstrative
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Relative
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Interrogative
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Conjunctive
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Viewpoint and Commenting
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Intensifiers and Mitigators
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Adverbial Nouns
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Adverbial Clauses
9) Determiners
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Overview: Determiners
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Pre-determiners
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Post-determiners
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Determiner Order
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Possessive Determiners
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Interrogative Determiners
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Demonstrative Determiners
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Indefinite Determiners
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Relative Determiners
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Articles
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Indefinite Articles
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Definite Article
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Zero Article
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Partitives
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Distributives
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Quantifiers
10) Prepositions and Conjunctions
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Overview: Prepositions
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Types of Prepositions
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Prepositions of Time
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Prepositions of Place
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Prepositions of Direction and Movement
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Prepositions of Manner
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Compound Prepositions
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Participle Prepositions
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Postpositions
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Particles
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Complex Prepositions
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Overview: Conjunctions
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Subordinating Conjunctions
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Coordinating Conjunctions
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Correlative Conjunctions
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Conjunctions of Time
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Conjunctions of Concession
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Conjunctions of Place
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Conjunctions of Condition
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Conjunctions of Cause and Effect
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Complementizers
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11) Grammatical Functions
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Subjects
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Predicates
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Complements
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Verb Complements
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Direct Objects
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Indirect Objects
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Objects of Prepositions
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Subject Complements
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Object Complements
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Adjective Complements
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Noun Complements
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Adjuncts
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Antecedents
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Appositives
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Expletives
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Pro-forms
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Pro-verb Phrases
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Pro-sentences
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Pro-adverbs
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Assertive Pro-forms
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Non-assertive Pro-forms
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Universal Pro-forms
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Negative Pro-forms
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Alternative Pro-forms
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Honorifics and Titles
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Parts of Speech (overview)
12) Phrases and Clauses
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Overview
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Phrases
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Noun Phrases
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Verb Phrases
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Prepositional Phrases
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Adjective Phrases
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Adverbial Phrases
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Clauses
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Independent Clauses
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Dependent Clauses
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Finite Clauses
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Relative Clauses
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Nominal Relative Clauses
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Restrictive and Non-restrictive Clauses
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Condition Clause
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That-clauses
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Non-finite Clauses
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Participle Clauses
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Present Participles
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Past Participles
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Perfect Participles
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Infinitive Clauses
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To-infinitives
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Bare Infinitives
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Modifiers and Issues
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Dangling Modifiers
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Infinitives and Infinitive Phrases
13) Sentences
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Overview: Sentences and Word Order
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Simple Sentences
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Compound Sentences
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Complex Sentences
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Compound-Complex Sentences
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Word Order
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Cleft Sentences
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Negation
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Verbs and Clauses
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Nouns and Pronouns
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Adverbs
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Double Negations
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Negative Markers
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Questions
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Yes/No Questions
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Wh- Questions
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Embedded Questions
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Question Tags
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Agreement
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Reported Speech
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Direct Speech
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Indirect Speech
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Inversion and Fronting
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Ellipsis
14) Punctuation and Spelling
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Overview
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Punctuation
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Full Stops
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Question Mark and Exclamation Mark
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Comma
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Colons and Semicolons
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Quotation Marks
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Hyphens and Dashes
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Brackets, Braces, and Parentheses
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Apostrophe
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Slash
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Capitalization
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Contractions
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Paragraphs
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Ellipsis Punctuation
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Run-on Sentences
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Spelling and Sound Units
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Syllables
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15) Etymology and Morphology
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Overview
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Word Formation Processes
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Loan Words and Calque
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Compounding and Blending
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Affixes
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Prefixes
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Suffixes
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Abbreviations
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Coinage and Eponyms
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Back-Formation and Conversion
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Clipping and Hypocorism
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Dialects (lexical variation)
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Morphology
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Lexical Relations
16) Miscellaneous Grammar Subjects
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Demonstratives
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Possessives
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Numbers
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Cardinal Numbers
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Ordinal Numbers
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Roman Numerals
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When to Spell Out Numbers
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Fractions, Decimals, Percentages
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Measurements
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Expressing Dates
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Expressing Time
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Grammatical Gender
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Interjections
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Money and Prices
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Expressing Comparison
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Expressing Contrast
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Expressing Purpose
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Expressing Cause and Effect
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Expressing Condition
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Greetings
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Nationality
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Definiteness