[英语语法不定式讲解]英语语法：不定式完成式的用法

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　　不定式完成式的用法

　　(1) 表示发生在谓语动作之前的动作：

　　He seems to have caught a cold. 他似乎感冒了。

　　I hate to have quarreled with her. 我后悔和她吵架了。

　　I believe it to have been a mistake. 我相信这是一个错误。

　　You appear to have travelled quite a lot. 你似乎作过多次旅行。

　　I’m sorry to have given you so much trouble. 对不起给了你这么多麻烦。

　　It’s said to have been built in the Ming dynasty. 据说它是明朝修建的。

　　(2) 表示在某个给定的时间之前已完成的动作：

　　I hope to have finished the work by now. 我希望现在以前已完成这项工作。

　　(3) 表示过去未曾实现的想法和愿望：

　　I should like to have come earlier. 我本想早点来的。

　　We were to have been married last year. 我们本来打算去年结婚的。

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