had gone和have gone有什么区别啊``急

had gone和have gone有什么区别啊``急 have gone和had go有什么区别 had/have/has gone/been 的区别如题了我问几个问题has gone 和have gone 的意思和用法都是一样的吗``还是其中一个不存在has been 和have been 也是一样同上问题还有had gone 和 have/has gone 有什么区别``要有 had gone和had been 有什么区别? has gone to 和 had gone to 有什么不同?现在完成时 和 过去完成时.怎么举例子 He has gone to Beijing和He had gone to Beijing有什么不同? 求问had gone和had been have gone has gone to和had gone to 的区别 he has gone跟he had gone 有什么区别? have been to 和have gone to 有什么区别 have been和have gone有什么区别? have gone和have been 有什么不同? 求have gone 和 have been gone区别 have been gone和have gone的区别.RT、 I am gone跟I have gone有什么分别? They had no idea_____ A Where he had gone B where had he gone C where did he have gone D where he has gone 并说明理由 have been和have gone的区别