219 条件现在时
A 条件现在时由 would／should + 动词原形构成（用于第一人称），或由 would + 动词原形构成（用于其他人称）。
| 肯定式： |
I would／I'd work／I should work |
| |
you would／you'd work等 |
| 否定式： |
I would not／wouldn't work或 |
| |
I should not／shouldn't work |
| |
you would not／wouldn't work等 |
| 疑问式： |
would／should I work？ |
| |
would you work？等 |
| 否定疑问式： |
should I not／shouldn't I work？ |
| |
would you not／wouldn't you work？等 |
B 这种形式用于：
（a）条件句中。（参见第221节至第229节。）
（b）would 和 should 的特殊用法中。（参见第二十二章。）
（c）过去将来时。当主句的主要动词是过去时的时候，从句中就必须用 would／should 而不用 will／shall：
I hope（that）I will／shall succeed．
我希望我会成功。
I hoped（that）I would／should succeed．
我曾希望我会成功。
I know（that）he will be in time．
我知道他会赶得上的。
I knew（that）he would be in time．
我当时知道他会赶得上的。
He thinks（that）they will give him a visa．
他想他们会给他签证。
He thought（that）they would give him a visa．
他本想他们会给他签证。
I expect（that）the plane will be diverted．
我料想飞机会改变航线。
I expected（that）the plane would be diverted．
我本料想飞机会改变航线。
（关于 will／shall，would／should 在间接引语中的用法，参见第三十一章。） |
