为什么是not have done和hadn't done ?

为什么是not have done和hadn't done ?
为什么是not have done和hadn't done ?

为什么是not have done和hadn't done ?
神马情况下啊

后者是完成时。

两者意思差不多，只不过前者是强调了加重了语气，do not have done,

前者用于句子开头，后者用于句子中间，位置不同罢了，不懂追问给你举例子抱歉没看清楚，这两个没有可比性，not have done与not had done用在开头，have not done 和had not done用在句子中间不懂

为什么是not have done和hadn't done ? have not done 和 not have done 区别在哪? We have done thing we ought not to have done and___undone things we ought to have done.A.left B.leaving.为什么是A,B为什么不可以 should have done 和should not have done的区别 Did you point out her mistake?Yes,I'd _______that.A.rather not have doneA.rather not have done、B rather not do为什么是a啊 could not have done should not have done 和 should not的区别 Fool ___ Jerry is,he could not have done such a thing.为什么是填as啊? can not done sth 和shouldn not have done sth 和might have done sth 和seemtohave done sth 的中文意思能回答起真不错, 应该是not have done 还是 hane not done can not have done sth和be considered to have done sth和offer to do sth 的中文意思 完成时被动语态为什么是have been done为什么不是 have be done什么情况下 be变成been may have done和may have done 的区别RTmay have done和might have done Much___to fight against pollution.A.have been done B,has been done C,had been done D.has done为什么是选B? 请问是have not only done ...but also done ...还是 have not only done ...but also have done ... what you have done will not have a good effect on your fame.a good effect on 为什么没有用affect?急what you have done will not have _____your fameA a good effect on B affected为什么是A儿不用B呢？将来完成时不可以吗？ walked on the street and could not find my wallet i could have leave it at home当时我问英语老师为什么是have done 而不是had done 他说情态动词加have done 就是表对过去的推测,但是我觉得有一点问题,求高手解答, have been done 和 to be done