see的ing形式怎么变?动词ing规则及5个常见例句
在英语中,动词的进行时态(简称-ing形式)可以通过以下几种方式变换:
1. 简单现在时到进行时:
- 将动词原形加上-ing。
- 例如:walk → walking
2. 简单过去时到进行时:
- 将动词过去式加上-ing。
- 例如:walked → walking
3. 现在完成时到进行时:
- 将现在完成时的构成(have/has + 过去分词)改为进行时。
- 例如:have walked → have been walking
4. 过去完成时到进行时:
- 将过去完成时的构成(had + 过去分词)改为进行时。
- 例如:had walked → had been walking
5. 一般现在时第三人称单数到进行时:
- 在动词原形后加上-s或-es。
- 例如:walk → walks
- 对于以辅音字母+y结尾的动词,变y为i,再加-es。
- 例如:study → studies
1. Walking is a great way to stay healthy.
(散步是保持健康的好方法。)
2. She is reading a book in the living room.
(她在客厅里读一本书。)
3. The children were playing in the park when it started to rain.
(孩子们在公园里玩耍时开始下雨了。)
4. He has been working on the project for two weeks.
(他已经在这个项目上工作了两个星期。)
5. They had been waiting for hours before the train arrived.
(火车到达之前,他们已经等了几个小时。)


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