have been doing和 have +动词过去分词 的区别.

have been doing和 have +动词过去分词 的区别. have been doing 和have +动词过去分词的差别. have+过去分词和have been+过去分词的区别 过去现在时 have /has been doing和have/ has +过去分词的区别 have been+过去分词、与have+过去分词的区别 have 动词过去分词.和have been 过去分词的用法 have been doing 和have+过去分词有什么不同? have+过去分词,和have been+过去分词的区别.都是现在完成时吗? have/has+been doing 与has/have+过去分词的区别 have been+动词过去分词 和have+过去分词有什么不同? have been doing sth=have 直接加动词过去分词吗? will have been doing和have been doing的区别