被动语态be done中 be是什么词性?还有现在完成时的被动语态have been done 中have been是什

被动语态be done中 be是什么词性?还有现在完成时的被动语态have been done 中have been是什 问下被动语态问题,have been done 是现在完成时的被动语态,那we have done this homew must have been done是什么被动语态 含有be动词的被动语态怎么变,have been done一定指被动吗 have/has been done 是现在完成的被动语态 have been done 是被动语态 have sth done 也是被动语态 我有点蒙了. have done还是be done是被动语态, 完成时被动语态为什么是have been done 现在完成时改被动语态什么时候用has或have been done have done是现在完成时 have been done 是不是现在完成时的被动吖 have done和 have been的区分 有些情况写 have been未必是被动语态啊 被动语态中be being done是什么时态?