English Grammar
Systematic English grammar learning
Parts of Speech
View AllWord classification, form changes, and basic functions in sentences
Noun
BeginnerNames of people, things, or abstract concepts
Verb
BeginnerActions or states, the core of English grammar
Adjective
BeginnerModifies nouns, with comparative and superlative forms
Adverb
BeginnerModifies verbs, adjectives, other adverbs, or sentences
Pronoun
BeginnerReplaces nouns to avoid repetition
Article
BeginnerIndicates definite or indefinite reference of nouns
Preposition
BeginnerShows logical relationships of time, place, manner, etc.
Conjunction
BeginnerConnects words, phrases, or sentences
Numeral
BeginnerExpresses quantity or order
Interjection
BeginnerExpresses strong emotions, usually used independently
Sentence Structure
View AllHow words combine into phrases, clauses, and complete sentences
Sentence Elements
BeginnerBasic skeleton: subject, predicate, object, predicative, attributive, adverbial, complement, appositive
Basic Sentence Patterns
BeginnerFive core structures: SV, SVC, SVO, SVOO, SVOC
Sentence Types
BeginnerDeclarative, interrogative, imperative, exclamatory sentences
Complex Sentences & Clauses
IntermediateNoun clauses, relative clauses, adverbial clauses
Compound Sentences
IntermediateMultiple independent clauses connected by coordinating conjunctions
Tenses
View AllPast, present, and future tenses — simple, continuous, perfect, and perfect continuous
Present Simple
BeginnerHabits, general truths, and regular actions. Form: V/V-s (3rd person singular).
Present Continuous
BeginnerActions happening right now or temporary situations. Form: am/is/are + V-ing.
Present Perfect
IntermediatePast action with present relevance, or experience. Form: have/has + V3 (past participle).
Present Perfect Continuous
IntermediateAction that started in the past and is still continuing. Form: have/has been + V-ing.
Comprehensive Rules
View AllDynamic rules spanning morphology and syntax, key area for advanced grammar correction
Voice
IntermediateActive voice and passive voice structure transformation
Mood
IntermediateIndicative, imperative, and subjunctive mood for hypothetical situations
Agreement
IntermediateSubject-verb agreement in person and number
Special Structures
AdvancedInversion, cleft sentences, absolute constructions, etc.
Non-finite & Absolute Constructions
AdvancedNon-finite verb forms (infinitives, gerunds, participles) as syntactic elements, absolute constructions (including verbless forms), and fixed collocations