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关于having been done 和 have been done的区别
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.

2018-11-24 10:12:17热度:作者:admin来源:网络收集

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.

话题:告诉我 时态 在此 

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