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been,请详细说明.意思是不是有过去分词的就不加been啊,我就是不知道在填词的时候加不加been、拜托各位帮帮!

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been,请详细说明.意思是不是有过去分词的就不加been啊,我就是不知道在填词的时候加不加been、拜托各位帮帮! 请问HAVE SB DONE 不表示现在完成时 He has _______ the watch for a year.A buy B.bought C.have D.kept on现在完成时! Sorry to have kept you waiting for such a long time.sorry后面为什么要加to?have kept 是现在完成时的形式,意思是不是“让你保持等待很长一段时间的状态”? 请问kept是什么意思 现在完成时疑问句和否定句中and 还变or吗?比如说：Have you ever eaten fish and/or chips? I can well remember that there was a time when a deep blue sky could never have kept me spellbound 这句话为什么用have,为什么后面是现在完成时? 过去式的的现在完成时have要不要变成had比如说I have moved to beijing.表示过去搬得时候要不要变成I had moved to beijing. have a bath现在完成时造句 在现在完成时语句中,have +动词ed.and 动词ed.请问在第二个动词前要加have吗? How long have you ________ this book A.bought B.borrowed C.kept D.got 选C,请问为什么? 分析语法 i'm sorry to have kept you waiting.请问waiting是什么词性呀.相当于形容词还是名词呀? you kept me waiting for two hours.为什么用 kept,而不用have kept. I'm sorry to have kept you waiting .-- Oh .not at all .I ___ here for only a few minutes.本题要用现在完成时还是过去完成时?为什么（我认为应该用过去完成时但不确定） i have kept you completely off the kept have kept是什么意思have kept 是have keep 的过去式,它的意思是什么? 英文时态He kept away from strong drinks for years,but recently I'm afraid he's begun to backslide这是金山词霸里的例句 请问he‘s begun 这里为什么用现在完成时?