I had a headache,so I went to see a doctor为什么要用had.had有什么作用呢

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I had a headache,so I went to see a doctor为什么要用had.had有什么作用呢
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I had a headache,so I went to see a doctor为什么要用had.had有什么作用呢
I had a headache,so I went to see a doctor为什么要用had.had有什么作用呢

I had a headache,so I went to see a doctor为什么要用had.had有什么作用呢
过去式

过去式

had是have的过去式，句子后面用过去式，所以前面也用过去式

had是have的过去式。是句子的谓语动词。句子的时态由谓语表现，所以作用就是这个这句话成为过去时就像后面的went一样

have a headach固定短语，had是have的过去式

首先，have a headache是一个词组，然后他去了看医生，所以have要用过去式

晕，had是have的过去式。（采纳我的，谢谢）

因为你去看过医生了，用过去式，前后时态需一致，所以用had

这是过去式，是讲已经发生过了的事

好多学霸，已经发生的用过去式

体现时态。。说明是过去头疼

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