英语虚拟语气

问题描述:

英语虚拟语气
对将来的假设可用 动词过去式 were to should ,能用could吗?
如这句:Suppose you could go camping this weekend,how would you feel?

If you could pass the exam tomorrow,I would give you a surprise
我这里就用了could,将来的虚拟有三种
过去式 ,were to ,should
could用在这里并没有超出三个的范围
could是can的过去式