have to和must有什么区别?have to的否定形式是什么?

来源:百度知道 编辑:UC知道 时间:2024/04/28 01:25:55

补充,口语很少用must,must是很强烈的意思。have to比较客观,语气也比较软,就算是要说我必须怎么怎么样的时候,大多数情况都用 I have to...

再有, have to 的否定就是 don't have to 或者 doesn't have to.
比如: I have to go to school.
I don't have to go to school.

没有haven't to的用法。

have to 强调客观因素,基本与MUST没什么区别
否定为DON'T/DOESN'T HAVE TO

否定是“don't have to”
have to有迫于客观的原因不得不
的意思

have to 表示的是客观的必须
must 表示的是主观的
就是直接在have后加not

have to是客观上不得不怎么样,否定是don't have to
must 是主观上认为必须如何,而且同时可以表示推测等等

must:必须
have to:不得不 否定形式:need not