过去将来完成时:(would have done) 例:I believed by the end of that year an advanced version of that software would have been developed, but I was wrong. 我坚信到那年年底为止,那个软件的新版本将被开发出来。但是我错了。 16 过去将来完成进行时:(would hav...
15.过去将来完成时:(would have done) 例:I believed by the end of that year an advanced version of that software would have been developed, but I was wrong. 我坚信到那年年底为止,那个软件的新版本将被开发出来。但是我错了。 16.过去将来完成进行时:(would ...
10. 现在完成进行时(have/has been doing) 表示某一动作开始于过去某一时间,延续或重复地出现至今,或将继续延续至将来。 例:We have been working on this project for over a month no...
英语时态分为16种,如下表所示: 各时态结构及用法 1. 一般现在时 (do/does; is/am/are) ①表示现在的情况、状态和特征。 例:He is a student. 他是一个学生。 ② 表示经常性、习惯性动作...
I had been cleaning my room the whole morning when she came.(当他来的时候,我已经打扫了一早上的房间了。) 将来完成进行时(will have been doing)将来完成进行时表示站在某个将来的...
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