used not do和didn't used to do有什么区别

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/11/19 19:52:14

used not do和didn't used to do有什么区别
前者是做情态动词吗?

used to 表示“过去惯常”,但“现在不做了”,指过去的习惯或状态,to 为不定式符号,后跟动词原形.有两点须注意：
①否定式.used to do sth.的否定式有两种形式：
used not (usedn’t)to do sth.
didn’t use to do sth.例如：
He didn’t use to (usedn’t to)like country music,but now
he is getting interested.
②疑问式.used to do sth.的疑问式也有两种形式.其简短回答中的to通常不予省略,但动词原形常被省略.
Did + sb.(主语)+ use to do sth.
Used + sb.(主语)+ to do sth.
Did he use to play basketball?
Used he to play basketball?

used not do和didn't used to do有什么区别 used to do, be used to doing , be used to do 有什么区别? 请问used to like doing 和used to like to do 有什么区别 used to do和动词过去式有什么区别 used to do 和be used to doing 有什么区别? be used to do sth.used to do sth.be used to dong sth.之间有什么区别区别(used to do sth 和be used to used to be 和 used to do 的区别 be used to 和 used to do 的区别 used to do,be used to doing和 be used to do的区别,并举例说明 be used to do 和doing区别 would do 和 used to 有何区别