have been 和 had been的区别分别在什么情况下使用呢

had been 和 has/have been的区别是什么? had been和have been有什么区别?请举例 have been to和had been to的区别 have been talking, had been told? have been / has been / had been 的区别 has been / have been /had been ………… have been 与had been在遇到什么局子时have been 改用had been he had been here,everything would have been all right和had he been here ,everything would have been all right 的区别是什么?怎么判断的, 英语,has been和 had been have has had或 having +been 的区别和用法 have since been 和 have been since have been 和have ever been区别! I -------the dictionary for 2 years.have been和 have had为什么选have had 请问HAS BEEN和 HAVE BEEN HAD BEEN的用法以及分别加DONE后的用法请问HAD BEEN 单复数用法有区别吗 have been +过去分词,和had been+过去分词,有什么区别? 我想问一下完成时态中 has been ,have heen 和had been 能举例吗, I had been sitting 和 I have been sitting 的区别多举些例子,并翻译 have been 和had been 有什么不同 关于此类多弄点