Preposition prep There are in, on, of, from, by, with, for, to and so on. , generally constitute a prepositional phrase, such as:
I was born in1997;
Articles include the definite article The and indefinite articles A and An, which generally modify nouns;
Pronouns include me, her, him, mine, her, his, me, her, him, it and so on.
Adverb adv. generally modifies verbs, such as she works hard.
Verbs are the work in the previous sentence, and adverbs are used to modify verbs, which is the same as efforts (adverbs) (verbs) in Chinese.
The basic structure of a sentence is subject-predicate structure or main system table structure.
He works. (intransitive verb, subject-predicate structure without object)
He helped me. (transitive verbs, the subject-predicate-object structure should take an object. )
He is a student. (family dining table)