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...
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...
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...
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 to your home,he doesn't know your address.3.should＋have＋过去分词,表示“某事本该早做而实际未做”,用于肯定句.You should have bee...
Yes,I have.I went there two years ago.是的,我去过.两年前去的.A: And have you been to India ?你去过印度吗?B: Yes.Before I went to America, I had been to India.是的.在我去美国之前,我就已经去过印度了 你可以这样理解,had been 是have been 的过去式,就是过去的过去 ...
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...
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...
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）。
have：有;持有;占有;由…组成;显示出，带有(性质、特征)发音：英 [hæv , həv] 美 [hæv , həv]第三人称单数： has 现在分词： having 过去式： had 过去分词： had 例句：1、你知道我一直在为你加油。英文翻译：You know I've been pulling for you 2、...
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)...