have been done 什么东西?have been doing是现在完成进行时的被动语态嘛?

题目

have been done 什么东西?have been doing是现在完成进行时的被动语态嘛?

答案

have been done 是现在完成时的被动语态 have been doing是现在完成进行时的主动形式.