关于情态动词have to

Question

I have to leave.
I do not have to leave.
Do you have to leave?
Yes,I do.否定回答用need not么?
(老师说否定回答用need not)

Answer 1

其实都可以。真的都可以。其实，日常说话人们只会说No, you don't.不会说No, you don't need to 或No, you don't have to.通常如果要强调你不是“必须”去，那么就用have to，如果不表示强调，用need to可能更符合习惯。

考试的话，老师怎么教你就怎么写。但是你要知道这其实都是可以的。我没有跟你胡说，我自己在国外待过，老外的确怎么说的都有。

Answer 2

首先，have to 不是情态动词，只是具有情态动词的特征，即后面要跟动词原形。Do you have to leave? 否定的确要用No，I needn't 这是对have to的一般疑问句的固定回答

Answer 3

可以啊

记住

needn’t（need not） do sth
因为needn’t是情态动词，要加动词原形

Answer 4

对，针对must和have to的提问的否定回答都用You,you needn't.

Answer 5

I
have
to
go
to
school.
I
don't
have
to
go
to
schol.
Do
you
have
to
go
to
School?
Yes,I
do.
No,I
don't.