过去式是had been 我们还没学被动语态了,所以还顾不上过去分词. 相关知识点: 试题来源: 解析 你理解得对.例子:I have been here for an hour.(我到这儿已经有一个小时了.)He has been here for half an hour.(他到这里已经有半个小时了.)I had been out when he came to see me.(他来找我时...
was were是过去时,have been has been是现在完成时,是已经完成的,但与现在仍有联系的,had been是过去完成时,是与过去某一时间有联系的. 过去式就是过去做的,过去分词是过去某一时间正在做的 分析总结。 waswere是过去时havebeenhasbeen是现在完成时是已经完成的但与现在仍有联系的hadbeen是过去完成时是与过去...
一、have是助动词，有五种基本形式：动词原形为have，第三人称单数现在时为has，过去式had，过去分词为had，现在分词为having。二、have been是现在完成进行时。三、助动词have的主要用法是：1、与过去分词构成各种完成时态。如：Newton has explained the movements of he moon from the attractions of...
你可以这样理解,had been 是have been 的过去式,就是过去的过去
I have been here for an hour. （我到这儿已经有一个小时了。）He has been here for half an hour. （他到这里已经有半个小时了。）I had been out when he came to see me. （他来找我时，我已经出门了。）I knew him last year.= I have known him since last year. （自从去...
been表示曾经去过，现在不在那里历程。2、have gone：jhave gone表示去了， 现在还在那个地方。三、引证用法不同 1、Have been：been常有“来”或“去”的意思。been指的是一次“完整”的来或去。2、have gone：gone [ɡɔn]adj. 离去的；死去的；用光的v. 去（go的过去分词）。
1.must＋have＋过去分词,表示对过去时间发生的动作或存在的情况的推测,一般用于肯定句.Her father thought that she must have met a fairy.You must have left your bag in the theatre.2.can(could)＋have＋过去分词,表示对过去发生事情的“不肯定”,常用于否定句和疑问句.He can't have been ...
I have been here for an hour.（我到这儿已经有一个小时了。）He has been here for half an hour.（他到这里已经有半个小时了。）I had been out when he came to see me.（他来找我时，我已经出门了。）I knew him last year.= I have known him since last year.（自从去年起...
已经去过某地：have been to somewhere 表示是指曾经去过某地。have been 与have gone 的区别:have been 是指去过某地,但是已经回来.I have been to Beijing.我去过北京(现在人不在北京)have gone 是指已经去了某地,但是没有回来.He has gone to Beijing.他已经去了北京(人在北京)...