Didn't need to do还有 needn't have done的区别如题我怕学生会听不懂,最好是英文版的。
问题描述：
Didn't need to do还有 needn't have done的区别
如题
我怕学生会听不懂,最好是英文版的。
答
didn't need to do 的need是实意动词. 不需要干...表示过去不需要做
needn't have done中的 need 作情态动词.. 过去不需要做的事已经做了 常表示有责怪的意思
答
Didn't need to do
Didn't 代表过去,所以意思是 过去没有必要做某事,但是你到底有没有做不确定.
needn't have done
have done,完成时,是已经做过了,但是needn't (没有必要做)
答
didn't need to表示过去不需要做,但是也许做了,也许没做,不确定；needn't have done表示过去不需要做的事已经做了