托福语法学习：条件完成时

会计考友

这种时态由would/should+完成式构成：
) _( R2 C* `/ R" v　　肯定式： I would/should have worked
$ v3 U! @9 s) L. q7 r) T- t　　 you would have worked
% A+ k0 R- E  P2 j% U% F; Q% P　　否定式： I would not/should not have worked等
' [& \4 t. Q. `7 S/ Q& O　　疑问式： would/should I have worked？等
　　否定疑问式： should I not have/shouldn’t I have worked？
　　would you not have/wouldn’t you have worked？
　　这种形式用于：
6 n" P& {/ r/ N" P. W/ c& u& l　　（a）条件句中。
' e) V) z$ K8 M9 I　　（b）would和should的特殊用法中。
　　（c）过去时中，相当于将来完成时：
& [- @) L6 t, w6 g　　I hope he will have finished before we get back．
　　我希望在我们回来之前他已经做完。
　　I hoped he would have finished before we got back．
　　我曾经希望在我们回来之前他已经做完。