本文目录
过去将来完成时是英语中的一种时态,表示在过去某个时间之前已经完成的动作。通常用于描述过去某个时间点之前本应该完成的动作,但实际上在那个时间点之前就已经完成了。
构成
过去将来完成时的构成如下:
- 主语 + would/should + have + 过去分词
例如:
- By the time he arrived, we would have finished the task.
- If she had come earlier, she should have seen the sunset.
使用
过去将来完成时通常用于虚拟语气中,表示对过去某个时间点之前本应该完成的动作的假设,或者是对过去某个时间点之前未能完成的动作的后悔。
例如:
- If I had studied harder, I would have passed the exam.
- He regretted that he had not invested in the stock market earlier.
过去将来完成时也可以用于复合句中,常与其他时态连用,表示在过去某个时间点之前已经完成的动作对后续动作的影响。
例如:
- She had told me that she would have finished the report by yesterday.
- If he had known the truth, he would have made a different decision.
总结
过去将来完成时是英语中的一种时态,常用于虚拟语气中,表示对过去某个时间点之前本应该完成的动作的假设,或者是对过去某个时间点之前未能完成的动作的后悔。它的构成为主语 + would/should + have + 过去分词,通常与其他时态连用,表示在过去某个时间点之前已经完成的动作对后续动作的影响。