have的过去式和过去分词是什么?给点例句.
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have的过去式和过去分词是什么?给点例句.
![have的过去式和过去分词是什么?给点例句.](/uploads/image/z/15778395-27-5.jpg?t=have%E7%9A%84%E8%BF%87%E5%8E%BB%E5%BC%8F%E5%92%8C%E8%BF%87%E5%8E%BB%E5%88%86%E8%AF%8D%E6%98%AF%E4%BB%80%E4%B9%88%3F%E7%BB%99%E7%82%B9%E4%BE%8B%E5%8F%A5.)
have的过去式和过去分词都是had,但是具体应用有区别.
1.表示过去用过去式:We had a meeting yesterday .(发生在过去)
2.表示现在完成(助动词的现在式+过去分词):We have had a meeting just now.(虽然发生在过去,却对现在产生了影响,即会议的进程在说话时依然清晰可见)
3.表示过去完成(助动词的过去式+过去分词):We told him we had had a meeting the day before yesterday.(发生在told的过去,即过去的过去)
1.表示过去用过去式:We had a meeting yesterday .(发生在过去)
2.表示现在完成(助动词的现在式+过去分词):We have had a meeting just now.(虽然发生在过去,却对现在产生了影响,即会议的进程在说话时依然清晰可见)
3.表示过去完成(助动词的过去式+过去分词):We told him we had had a meeting the day before yesterday.(发生在told的过去,即过去的过去)