have been doing 该怎么用

have been doing 该怎么用 What have you been doing 怎么用recent添 have been doing sth Have been doing与Have been +动词过去分词的区别那么具体用法呢?该怎么区分呢?例如：Have been leaning 与 Have been leaned的区分 would have been doing这个时态怎么用?would have been doing是个什么时态?这个时态怎么用?请大家最好举几个例子, have been doing 往往怎么用?叫：完成进行时吗? 用prefer,have done,have been doing分别造句 having been done have been done have been doing 区别?就是have 和having 还有done和doing 都怎么用的如题 请说的直白一些 最好有点例子什么的 万谢 英语have been doing反意疑问句You must have been playing tennis at the time,反意疑问句怎么问?句中有“have been doing，和“at the tiem，不是应该用weren't have been doing 神马意思? what you have been doing has been doing have been done区别 have been doing ,have done和have doing区别 用have been doing 句型早十句话! i has been doing 还是i have been doing may have been怎么用 Where have you been?What _____ A.did you do B.have you been doing C.have made D.were you doing这个怎么选,为什么, “一直在”除了have been doing外可以用be always doing吗?哪个更好?