请问must 有哪几种用法?

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请问must 有哪几种用法?
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请问must 有哪几种用法?
请问must 有哪几种用法?

请问must 有哪几种用法?
must1
助词 v.aux.
1.
(表示必要、命令或强制)必须,得
You mustn't talk like that.
你可不能这样说话.
You must do as you are told.
你必须遵嘱行事.
We must be home by six.
我们必须在六点以前回家.
2

1.aux.
I must go there tomorrow.
You must be Tom.
2.n.
Eating vegetables everyday is a must.
Going to school is a must.
3.That dress is a must have.

1:must I ...?
2:must to do ...
3:表示必须 must主观 have to客观
4:引出的问句,否定用needn't或don't have to
5:“must be + 表语”表示推测,它的否定或疑问式用can代替must。
6:“must + have + 过去分词”