to have been done是什么时态

to have been done是什么时态 have been done 和 to be done pretend to be done是什么时态?pretend to be doing pretend to have done pretend to have been done呢? have been done 是什么时态?那have done呢? have done和have been done的用法是什么? To.have.been.done应该怎么翻译 to have been done 怎么用 have/has been+done 是什么时? There have been done是什么用法? to be done to have been done to have been doing 形式的造句, have been to和have done to的区别 have been done , have been doing ,have done的区别是什么如题 关于英语非谓语问题非谓语doing having done to do to have done to be doing being done have been done to be done to have been doing done doing,having done,to do,to have done ,to be doing,being done,have been done,to be done,to have been doin to have done,to be done,to have been done,having done在用法上有什么区别? 歌曲中含有TO DO ：TO BE DONE ：TO HAVE BEEN DONE ：TO HAVE DONE是班主任让查的, to be done、being done 和have been done 有什么区别啊~ 用sb/sth is said to have done/to have been done 个造个句子 非谓语动词having been done,to have been done什么时候用?举一些例子.