have had been done是什么时态
回答
爱扬教育
2022-09-23
- 相关推荐
扩展资料
如:The rooms had been cleaned when I came. 我来的时候,房间已经被打扫了。have/has been done是现在完成时的被动语态。表示某事被做。
过去将来完成进行时:(would have been doing)
表示动作从过去某一时间开始一直延续到过去将来某一时间,期间一直有规律在进行、不曾间断,并且有可能继续延续下去。
例:They said that by the end of the following month, the project would have been being worked for 3 years.
他们说到第二个月底为止,这项工程就已经不停地进行了3年了。