河南专升本公共英语语法考点分析---虚拟语气

虚拟语气是通过特殊的谓语动词形式来表达的愿望、假设、怀疑、猜测或建议等语气，它不表示客观存在。

一、虚拟语气在单句中的用法

二、虚拟语气在复合句中的用法

1．在非真实性条件句与主句中的用法

1）表示与现在事实相反

条件从句	主句
一般过去时（be多用于were）	would/should/could/might＋动词原形

例如：If I were you,I should accept the invitation.
如果我是你，我会接受邀请的。
If I had time,I would go there.
如果我有空，我就去那儿。
2）与过去事实相反

条件从句	主句
过去完成时	would/should/could/might＋have done

例如：If you had come earlier,you couldnt/wouldnt have missed the bus.
如果你早点来，你就不会错过那辆公共汽车了。
If he had seen you yesterday,he would have returned y