has 或have been 怎么用?它跟过去完成时是一样的吗

has 或have been 怎么用?它跟过去完成时是一样的吗 用have(has)been或have（has）gone填空 there have been 和there has been是怎么用的 是there have been+可数名词复数；there has been +可数名词单数或不可数名词吗如there have been many books about historythere has been life on earth for millions of years怎么感觉 have/has been 这东西到底怎么用, 用have (has)been 或have（has)gone填空A:Where______Li fei____?B:He______to Hainan Island.A:How long____he He can't have been.He must have been.不是说单三用has吗?这里怎么用的have? 几个英语用法HAVE BEEN 和 HAS BEEN 有什么不同 WERE怎么用? 现在完成时改被动语态什么时候用has或have been done have has had或 having +been 的区别和用法 英语Has been to 和Has been in 怎么用? 过去完成时用法Have/has gone tohave/has been tohave/has been in这几个怎么用和区分?或者举几个易懂和有代表性的例子. 一般过去时中,什么时候用has,什么时候用has/have been? have been 和has和has 在什么时候用呀 反义疑问句 have怎么用到底用do或does还是用have 或has 用have(has)been或have(has)gone填空where Li Fei ?He to Hainan Island.How long he there?He there for three days. have/has been to 和 have/has gone to 的区别.该怎么区分啊. may have been怎么用 have,has,have been,has been在什么情况下用啊?