情态动词本身有一定的词义，表示语气的单词。但是不能独立作谓语，只能和动词原形一起构成谓语。那么情态动词有哪些呢？下面是小编整理的详细内容，一起来看看吧！

情态动词有哪些英语单词

(1)只作情态动词：may，might，must...

(2)可作情态动词又可做实义动词：need，dare，can...

(3)具有情态动词特征：have(had，has)to，used to，ought to

(4)可做情态动词又可作助动词：shall(should)，will(would)

情态动词的功能

1）构成否定式：

He didn't go and neither did she.他没去，她也没去。

The meeting might not start until 5 o'clock.会议可能直到五点才开始。

2）构成疑问式或附加疑问式：

Must you leave right now?你一定要马上离开吗？

You have been learning French for 5 years,haven't you?你已经学了五年法语，不是吗？

3）构成修辞倒装：

Nowhere can he obtain any information about his sister.他无处得到他姐姐的任何消息。

Hardly had he arrived when she started complaining.他刚到，她就开始抱怨起来。

4）代替限定动词词组：

A: Who can solve this crossword puzzle?

B: Tom can.

A: Shall I write to him?

B: Yes,do.