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to have been done是什么时态

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to have been done是什么时态
to have been done是什么时态
这是现在完成时的被动语态.本来,have been就是现在完成时,be done就是被动语态,两者结合起来就成了现在完成时的被动语态了.例句：
The job has been done.
The work has been finished.
have been done 是什么时态?那have done呢? have been to是什么时态? have been done 这个是什么时态的结构 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/has+been to是什么时态 have been是什么时态? have+been是什么时态 have has done是什么时态 have been done 和 to be done