What are the major categories of English grammar

English grammar includes the following categories: lexical, tense, morphology, tone, sentence components, and sentence structure.

1. Grammatical Categories:

English grammar can be divided into the following basic categories, Parts of Speech, which categorize words such as nouns, verbs, adjectives, adverbs, pronouns, articles, prepositions, conjunctions, and exclamations. Sentence Structure (句子结构), which includes the composition and relationships of subjects, predicates, objects, determiners, gerunds, and complements in a sentence.

Clause (Clause), the subordinate clauses in a main-subordinate compound sentence, such as noun clauses, determiner clauses, and gerund clauses. Grammatical Tenses, changes in time and state of action, such as general present, past, and future tenses. Grammatical tone (Mood), indicating the speaker's opinion and attitude towards a certain fact or assumption, such as declarative tone, virtual tone, imperative tone, etc.

2. Grammatical structure:

English grammar can also be categorized according to the structural point of view, Phrase: consists of words without the predicative of the verb, Sentence, with the predicative verb as the core, can express a complete meaning independently. Clause (Clause), including the subject and predicate sentence fragments, need to be dependent on the main sentence.

Compound Sentence, which consists of two or more independent main clauses joined by a conjunction. Compound Sentence, which consists of a main clause and at least one subordinate clause.

3. Grammatical Functions:

English grammar can also be categorized according to its functions, tenses and modals, which are used to indicate when an action occurs and by whom it is performed. Tenses and modal verbs (to indicate the affirmative, negative, question, command, desire, and other moods of the action. Grammatical modifications and restrictions, which are applied to nouns, verbs and other sentence components through adjectives and adverbs.

Sentence Structure and Grammatical Relationships, through which the structure and meaning of a sentence is expressed; in fact, English grammar involves many subdivided rules and concepts. In-depth study and understanding of the different broad categories of English grammar can help improve the accuracy and fluency of language expression. It is worth noting that grammar is a complex and flexible subject that requires systematic study and practice.