一般式 |
复杂形式 |
|||
被动式 |
完成式 |
完成被动式 |
否定式 |
|
to do 主动/将来 |
to be done 被动/将来 |
to have done 主动/完成 |
to have been done 被动/完成 |
not to do, not to be done |
-ing 主动/进行/同时性 |
being done 被动/进行 |
having done 主动/完成 |
having been done 被动/完成 |
not doing, not having done |
n 以上各种形式的使用场合及区别
1. to be done / being done/doing 常作定语
to be done 与说明对象之间表被动和将来;
being done与说明对象之间表被动和进行;
doing与说明对象之间表主动和进行.
The students to be interviewed tomorrow are required to bring all the necessary papers.
= The students who ______ _ tomorrow are required to bring all the necessary papers.
The problem being discussed now is about “Economy or environment”.
= The problem which ________ ________ _________ now is about “Economy or environment”.
The old man sitting at the table wears a white shirt.
= The old man who ________ _________ __________ wears a white shirt.