had been 和 has/have been的区别是什么?

had been 和 has/have been的区别是什么? have has had或 having +been 的区别和用法 have been / has been / had been 的区别 has been / have been /had been ………… have/has/had加been是什么时态 英语,has been和 had been 我想问一下完成时态中 has been ,have heen 和had been 能举例吗, 关于时态的问题have beenhave been 和have had been有什么区别?原句是这样的：I've heard has been good.有have也有has 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 和 has been的区别 has been和have been区别 was changed和has changed ; have been和had been ； have done 和 has done 区别.希望举例子说明说明. have been away 和 has/have left 初中英语语法has been和had been的区别 关于had has等英语语法has been V+ing和had been V+ing的区别. has been ,had been,have been的区别,以及使用方法是什么 has been ,had been,have been的区别,以及使用方法是什么 there have been怎样用?there have beenthere had beenthere has been有心向求学