时态--10--现在完成进⾏时
文章目录
- 现在完成进⾏时
- 1.语法
- ⽤法⼀: ==过去进⾏的v.(结束)对现在有影响==
- ⽤法⼆: ==过去进⾏的v.持续(重复)到现在,也许还会继续==。
- 2.与现在完成时的区别
- 3.例句
现在完成进⾏时
- 现在完成进行时(Present Perfect Continuous)表示从过去某一时刻开始一直持续到现在的动作
并且这个动作可能还在进行,或者刚刚停止但影响仍在。
1.语法
⽤法⼀: 过去进⾏的v.(结束)对现在有影响
⽤法⼆: 过去进⾏的v.持续(重复)到现在,也许还会继续。
2.与现在完成时的区别
3.例句
-
They have been waiting for the bus for over half an hour.(他们已经等公交车半个多小时了)
-
My brother has been playing the guitar since he was ten years old.(我弟弟从十岁起就一直在弹吉他)
-
It has been raining heavily all morning.(整个上午一直在下大雨)
-
We have been studying this project for weeks and still haven’t finished.(我们研究这个项目好几个星期了,还没完成)
-
She has been practicing her speech every day to prepare for the competition.(为了准备比赛,她每天都在练习演讲)