have done和 have been的区分 有些情况写 have been未必是被动语态啊比如 这个句子：There have been a great number of accidents lately.最近事故很多,这并不是一个被动句啊同理：I haven't been very successful so far.

have been done 和 to be done have done和have been done 的区别, have done和have been done的用法是什么? have done和have been done有什么分别 being done,have been done和having done怎么分辨 HAVING BEEN DONE和HAVE BEEN DONE有什么区别? have been done和have been do的区别 have been doing ,have done和have doing区别 must have been done must have done having being done 和have been done 有什么区别 have been done和be done的区别 have been done和have been doing 和having been done和having done的区别.请举例, can't have been和can' have done有什么区别或者must have been和must hane done;may have been和may have done have sb done和have been doing有么? have been to和have done to的区别 have been doing have done 的用法和区别 have been doing have done 的用法和区别 有关have done 和be done的问题,什么时候用be done 什么时候用 have 以及have been done.