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.

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. have been done 和 to be done be done,have done ,having done和done之间的去别做题时怎么分别他们啊 have been done和be done的区别 must be done和 must have done区别 have done与have be done to be done、being done 和have been done 有什么区别啊~ be done 和 be done it have something done和need to be done如题 请问have to be done ,need to be done怎么使用?是什么时态?表示什么时间段? done和have done 用法区别RT may have done和may have done 的区别RTmay have done和might have done being done,have been done和having done怎么分辨 have sth. done 和have sth.to be done用法有什么区别 will be done和will have done是什么情况could have been呢 be believed to have done have been done和be done的区别最好有例句和翻译 be done 和have done的区别要有例句和翻译 have something done 与have sth.to be done 区别