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had been doing 我知道是过去完成时,但不知道是第几人称用的?是第三人称用的吗?请详细点,谢谢

“had been doing”这句话是什么时态?

1、首先要区分has been done与 had been done的区别: have/has been done 是现在完成时的被动语态。表示某事被做,。 如:The problems have been solved.这些问题已经被解决了。 had been done 则是过去的过去,是过去完成的被动态时。(当你想说发生在过去的两件事时,就要分清谁先谁后。先发生的用过去完成时,后发生的要用过去时)。 如:The rooms had been cleaned when I came. 我来的时候,房间已经被打扫了。 2、区分has/have been doing与 had been doi

英语中has done,had done,being done,be done,have been done,had been done,这些时态要怎么用。特别乱

has done是现在完成时态,且主语是单数第三人称,比如,He has finished his homework now,so his mother allows him to play outdoors.had done是过去完成时态,主语任意皆可 比如He had finished his homework yesterday afternoon,so his mother allowed him to play outdoors.being done是现在进行时态的被动语态,意为“正被……”比如:The building is being built now by the gover

had been和havebeen怎么用

had been是过去完成时,表示去过什么地方,也是对过去已经做过的事的描述. eg:I had been there.我去过那里. have/has been 是现在完成时,前者用于第一人称或复数(I或they等),后者用于第三人称单数(she或he或someone 等),he has been there.他去过那里(不管有没有回来). 下面是术语意义: 过去完成时 : 1) 概念:表示过去的过去 过去完成时:即过去的过去所发生的事情! 其构成是主语+had +过去分词. 那时以前 那时 现在 2) 用法 a.在told,said,knew,heard,thought等动词后的宾语从句.

has been done跟has been doing有什么区别

又到了为小伙伴们解惑的时候了✺◟(∗❛ัᴗ❛ั∗)◞✺,has been done强调的是动作的完成状态,侧重于结果。has been doing强调的是动作的持续状态,侧重于过程。这里就给大家总结了一个它们基础知识的表格,可以先简单了解一下先:

了解完它们的基础知识后,现在就来看看它们的具体区别吧ლ(・∀・ )ლ

1、时态不同

has been done是过去完成时态,表示某个动作或事件在过去已经完成。has been doing是过去进行时态,表示某个动作或事件在过去一段时间内一直在进行。

例句:

① The report has been done.这份报告已经完成了。

② He has been doing his homework for two hours.他已经做作业两个小时了。

2、动作状态不同

has been done强调的是动作的完成状态,侧重于结果。has been doing强调的是动作的持续状态,侧重于过程。

例句:

① The dishes have been done.碗碟已经洗好了。

② She has been doing yoga every morning.她每天早上都在做瑜伽。

3、句子结构不同

has been done通常作为被动语态的形式出现,表示动作的接受者或受影响者。has been doing通常作为进行时态的形式出现,表示动作的执行者或主体。

例句:

① The project has been done by a team of experts.这个项目是由一支专家团队完成的。

② He has been doing all the housework lately.最近他一直在做家务。

一个英语句子中,主语是第三人称单数,这个句子又是过去式,动词用什么形式?

您好,一个英语句子中,假如句子是过去式,而主语是第三人称单数,动词本身是没有区分三单或是单复数,只有用来构成过去式的(助动词)有区分三单,但也仅有 be 助动词,其余的助动词都没有区分: 1)一般过去时:三单的(be 动词)用 was;比如 he was 2)过去进行时:三单的(be 助动词)用 was;比如 he was doing 3)过去完成时:没有区别,全部使用 had done 4)过去完成进行时:没有区别,全部使用 had been doing
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