英语虚词有哪些

英语中的虚词（function words）是指那些不承担句子主要意义的词，它们在句子中主要起到连接、修饰或限定作用。以下是一些常见的英语虚词：

1. 冠词（Articles）:

a, an, the

2. 代词（Pronouns）:

I, you, he, she, it, we, they

me, my, mine, myself, you, your, yours, yourself, him, his, himself, her, hers, herself, it, its, itself, us, our, ours, ourselves, who, whom, whose, myself, yourself, himself, herself, itself, ourselves, yourselves, themselves

3. 介词（Prepositions）:

in, on, at, by, for, with, of, to, from, about, against, between, into, through, during, after, before, above, below, upon, within, without

4. 连词（Conjunctions）:

and, but, or, nor, so, for, yet, because, although, if, when, while, since, before, after, until, as, unless, once, where, whether, how, why

5. 感叹词（Interjections）:

oh, ah, um, eh, oops, ouch, hooray, yay, hey, hello, goodbye, etc.

6. 情态动词（Modal verbs）:

can, could, may, might, shall, should, will, would, must, ought to

7. 助动词（Auxiliary verbs）:

be, have, do, does, did, shall, should, will, would, may, might, can, could

这些虚词虽然在句子中不承担主要的意义，但它们在句子结构中起着至关重要的作用。