have been done 这个是什么时态的结构

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/08 10:53:40

1 have （ has ) + done 现在完成时 ,had +done 是过去完成时 .
2 be ( am ,is are ) + done 是被动语态
3 have been done 是现在完成时的被动语态
4 have been doing 是现在完成进行时

have been done 这个是什么时态的结构 what done has been done has been done?在说说他的结构是什么时态? have been done 是什么时态?那have done呢? have+done是什么时态? have done是什么时态 having been done是什么时态? 有have been being done和have being done吗?是什么时态? have done和have been done的用法是什么? Everything can be done has been done.请问这里can be done 用的是什么时态 have been是什么时态? have+been是什么时态 How long have you been doing是什么时态的句子?这个时态怎样构成?