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是现在完成时 have been done 是不是现在完成时的被动吖
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
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
现在完成时改被动语态什么时候用has或have been done
had done 是过去完成时,have done是现在完成时,那have been和had been呢?be不是动词呀
have done 是现在完成时,表在过去发生的动作对现有影响.So far I have been to Beijin
关于现在完成时现在完成时的基本结构不就是 have has been么,怎么还+have/has+过去分词(done),
现在完成时的结构 主语+ 助动词 have has+been+done+过去分词是什么意思?
have/has been done 是现在完成的被动语态
现在完成时的have been
请问,现在完成时比如说have kept 和have been done.那如果是have eaten中间为什么不加be
请问HAVE SB DONE 不表示现在完成时