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hAvE DonE 和hAD DonE 怎么用 最好有讲解有题

【区别】have done是现在完成时,表示动作发生在过去一直延续到到现在为止(或许动作 已完成,或许动作还在进行)。 had done 是过去完成时,表示过去的过去,指过去某一时间之前就已完成的动 作。 【例句】We have lived here for ten years. 1....

have done 是现在完成时,表示对现在的影响 had done是过去完成时,表示过去的过去

首先,请您注意没有have did / had did这2个结构;其次,您所对比的这2种结构里,have与had仅仅是时态不同,had用于过去时;最后来看看这3种不同的结构:1、have sth/sb do...让...去做... I would have him wait for me at the gate of the par...

Have done是现在完成时,意思大概是一个动作以前开始做,现在还在持续着的。 Had done是过去完成时,大概意思是一个动作发生在另一个动作之前。 比如:I had left my home when my mother got up.

当然是had done,因为这是过去过去完成时态,I had done the dishes yesterday morning

have been doing 是现在完成进行时,表过去发生的动作一直在进行到现在。 We have reading an interesting book since last week. have done 是现在完成时,表在过去发生的动作对现有影响。 So far I have been to Beijing twice. had done 是过...

have done 是现在完成时,表示动作在现在时间之前的完成。 had done 是过去完成时,表示动作在过去的一个时间点之前就已经完成了

一个是现在完成时(表示动作在现在时间之前的完成),一是过去完成时(表示动作在过去的一个时间点之前就已经完成了)

have been doing 是现在完成进行时,表过去发生的动作一直在进行到现在. We have reading an interesting book since last week. have done 是现在完成时,表在过去发生的动作对现有影响. So far I have been to Beijing twice. had done 是过去完...

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