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has been doing是什么时态

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has been doing是什么时态

  时态是我们学习英语时必须掌握的一个知识,那么你知道has been doing是什么时态吗?下面是学习啦小编为你整理has been doing的时态的相关资料,希望大家喜欢!

  has been doing的时态

  has been doing的时态是现在完成进行时,表示现在之前已发生过或完成的动作或状态。

  has been doing:一直在做

  现在完成进行时:

  表示动作从某一时间开始,一直持续到现在,或者刚刚终止,或者可能仍然要继续下去。(与since,for连用时,要用连续性动词,不可用瞬间动词,但连续性动词常常表示动作会进行下去)

  其构成为: 主语+助动词(have/has)+been+动词的 现在分词+其他成分

  has been doing的用法

  1. The government has been doing some blue-sky thinking on how to improve school standards.

  就如何提高学校的水平,政府仍然在作一些漫无边际的构想。

  2. He has been doing long - distance running exercise for a long time now.

  他练 长跑 已经不少日子了.

  3. He has been doing this sort of work for years.

  他干这一行有年头了.

  4.What has he been doing lately ?

  他最近干什么?

  5.What has she been doing lately?44

  对未来有何计划?

  has been doing与had been doing的区别

  has been doing表示动作到现在为止一直在做

  I have been waiting for you for an hour.

  had been doing表示动作到过去某一时刻为止一直在做

  I had been waiting for you for an hour until you finally reached.

  have been doing 表示 现在的时间段 完成了某个动作 或者表示从过去到现在,直至以后一直持续的动作 :had been doing 表示 过去一点之前开始的动作 到这个点完成,或者这个点之前开始的,一直持续到 这个点。 总之一句话:have been doing 表示现在的动作 ;had been doing 表示过去的动作

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