V-ed和having been v-ed的区别

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/11/10 15:58:29

V-ed和having been v-ed的区别
when completed ,the museum will be open to the public next year.
中的completed能用having been compled 互换吗?
它们都是表示过去被动吧.

completed is correct.
having been done means a thing keep happening from a moment in the past to now.

V-ed和having been v-ed的区别 having been +V-ed 和v-ed做状语的区别 have been v+ed / have v+ed 的区别关于非谓语动词的用法having done 和v-ed的区别是什么? have been+v.ed是什么时态,我看有说是现在完成时,那么,它和have+v.ed有没有什么区别,哪位知道给说说 v-ing作状语的时候,什么时候用原型v-ing,什么时候用完成时having v-ed啊? 英语中V-ING ,V-ED 与不定式放在句首时的区别谢谢了, keep sb./sth.+V-ed的用法? -ing和-ed的区别九年级英语加V.ing和V.ed的词语或词组 keep sb./sth.+V-ed 语法问题关于动词Was+V(动词过去式ed）被动形式……和V（过去式ed）用法上有什么区别?如果经常发生的事情的话是不是