摘要：14 不定式的时态和语态 时态\语态 主动 被动 一般式 to do to be done 进行式 to be doing 完成式 to have done to have been done 完成进行式 to have been doing 1) 现在时:一般现在时表示的动词.有时与谓语动词表示的动作同时发生.有时发生在谓语动词的动作之后. He seems to know this. I hope to see you again. = I hope that I'll see you again. 我希望再见到你. 2) 完成时:表示的动作发生在谓语动词表示的动作之前. I'm sorry to have given you so much trouble. He seems to have caught a cold. 3) 进行时: 表示动作正在进行.与谓语动词表示的动作同时发生. He seems to be eating something. 4) 完成进行时: She is known to have been wreaking on the problem for many years.

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