6.虚拟语气用于定语从句
这种从句常用在"It is(high)time(that)..."句型中,定语从句的谓语动词用过去式,或"should+动词原形(should不能省略,be用were)"来表示,意为"(现在)该……"。例如:
It's time that I went and picked up my little girl from school.
It is high time we were going.
7.虚拟语气用于if only引导的感叹句:
If only I had taken his advice.我要是听他的话就好了。
If only I were a bird!我如果是一只鸟就好了。
8.虚拟语气用于If it were not for...
此结构意为"如果没有",表示同现在事实相反的假设。例如:
If it were not for the rain,the crops should(would)die.
If it had not been for...意为"如果当时没有……",表示同过去事实相反的假设。例如:
If it had not been for your timely help,I would have failed.
9.虚拟语气在would rather后接从句:
I'd rather you paid me now.(从句用过去时指现在)
I would rather they came tomorrow.(从句用过去时指将来)
I'd rather she hadn't done that.(从句用过去完成时指过去)(此句中的would可看作是表愿望的实义动词)
