英语语法虚拟语气问题 If we go by bus, It will br cheaper If he had money, he would buy

英语语法虚拟语气问题 If we go by bus, It will br cheaper If he had money, he would buy

if+条件句可分为两种：真实条件句【即完全有可能存在】，If he had money, he would buy a car
【即不可能存在】
If we go by bus, It will be cheaper 为真实条件句，故使用正常句式。

If he had money, he would buy a car.为非真实条件句，与现在事实想法，【实际是现在没钱】故用虚拟语气。

An omnibus has always appeared to me,

第一句不是虚拟句，是真实条件句，所以用的是主将从现。
第二句是虚拟句，对现在的虚拟，用一般过去时
区别真实条件句和虚拟句就看从句说的是否可以实现，如果可以就是真实条件句，如果不可以就是虚拟句。

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