have to 中的have是实义动词么??
来源:百度知道 编辑:UC知道 时间:2024/06/07 06:07:34
不是,是情态动词
1 have to的用法
I have to get up early tomorrow morning.
我明天早晨必须(不得不)早起。
1.have(has)to +动词原形
have(has)to后面要用动词原形。当主语为第三人称单数时用has to~,当句子是过去时用had to~。
We have to leave now.
我们不得不现在就离开。
He has to work on Sunday.
他不得不在周日工作。
I had to do my homework last Sunday.
上周日,我不得不做作业。
2 have to的否定句
句型:主语+don''t(doesn''t)have to+动词原形~.
You don''t have to walk so fast.
你不必走那么快。
He will not have to buy a new coat next year.
明年,他没必要买新外衣了。
3 have to的疑问句
句型:Do(Does)+主语+have to +动词原形~?
Do you have to study maths now?
你现在必须学数字吗?
Yes,I do.是的,必须学。
No,I don''t(have to).不,不必学。
Did he have to ask the question?
他非要问那个问题吗?
Yes,he did.是的。
No,he didn''