关于having been done 和 have been done的区别

来源：百度知道编辑：UC知道时间：2024/06/06 09:17:16

有哪位高手能够告诉我这两者分别代表什么含义和有什么区别吗?并分别引用这两个时态造两个句子详细的告诉我一下.在此谢过.

having been done是过去完成进行时的被动语态，表示过去某一时间正在发生的被动的动作：that shirt having been washed by my mom yesterday.
have been done是过去完成时，标一件事已经被完成了：that shirt have been washed by my mom three days ago.

The key ___,he could not enter the room.A having been lost B had been lost C having lost D losing 为什么是There having been? having been done 与done imressed by, having been impressed by being done having been done的区别 having been done和have been done的区别关于having done She has been ill.She is having ___ leave. There having been no rain, the ground was dry. 请问这个句子里的 have been having 是什么意思