英语中have been doing sth和have done 的区别?同上

英语中have been doing sth和have done 的区别?同上 英语时态区分have done .have been doing.had done.had been doing.有什么区别. have been doing sth 英语中have been；has been是什么? have been doing 神马意思? what you have been doing has been doing have been done区别 英语问题it's always been a busyit's always been a busy life for me...:) i like it that way...:) how about you?what have you been doing lately? have been doing ,have done和have doing区别 i has been doing 还是i have been doing we have been doing much better in English __our reacher's help.介词填空 have been doing 为什么还有 have been deadj have been do和have been doing的不同 关于英语非谓语问题非谓语doing having done to do to have done to be doing being done have been done to be done to have been doing done doing,having done,to do,to have done ,to be doing,being done,have been done,to be done,to have been doin have been doing,had been doing,will have been down是什么 有没有have doing这个说法?我们都知道现在完成时有have done 和have been done 两种用法,那么请问现在完成进行时中除了有have been doing外有不有have doing? what have they been doing 是什么时态 have been doing sth是什么时态?