作业帮英语八种时态简单公示及例句
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/07/13 21:17:04
英语八种时态简单公示及例句
1一般现在时:动词原形
I am a teacher.
2一般过去时：动词过去式
I was a teacher.
3现在进行时：be+现在分词
I am reading.
4过去进行时：be(was,were)+现在分词
I was reading.
5现在完成时：have/has+过去分词
I have finished my homework.
6过去完成时：had+过去分词
I had already finished my homework.
7现在完成进行时：have/has been+现在分词
A heavy snow has been falling all day.
8过去完成进行时：had been +现在分词
Since 2 day ago,the heavy snow had been falling.
I am a teacher.
2一般过去时：动词过去式
I was a teacher.
3现在进行时：be+现在分词
I am reading.
4过去进行时：be(was,were)+现在分词
I was reading.
5现在完成时：have/has+过去分词
I have finished my homework.
6过去完成时：had+过去分词
I had already finished my homework.
7现在完成进行时：have/has been+现在分词
A heavy snow has been falling all day.
8过去完成进行时：had been +现在分词
Since 2 day ago,the heavy snow had been falling.