"have/had + 过去分词" 的句型指什么时态?如何用?
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"have/had + 过去分词" 的句型指什么时态?如何用?
现在完成时:have + 过去分词,表示过去发生的动作对现在造成的影响或结果.
过去完成时:had +过去分词,表示过去的过去已经完成或发生的动作.如
He has finished his homework.
The train had left when he got to the station .
再问: 缩写是不是直接在人称后加" 've "?
再答: 是的,‘ve / 's He's finished ...= He has finished... They 've finished .... = They have finished ...
过去完成时:had +过去分词,表示过去的过去已经完成或发生的动作.如
He has finished his homework.
The train had left when he got to the station .
再问: 缩写是不是直接在人称后加" 've "?
再答: 是的,‘ve / 's He's finished ...= He has finished... They 've finished .... = They have finished ...
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