If he were to leave today,he would get there by Monday.这是英语虚拟语气教材中的一句话.
问题描述：
If he were to leave today,he would get there by Monday.这是英语虚拟语气教材中的一句话.
可是我不明白为什么这里用to leave,是因为前边的were 如果这样的话,为什么不直接用If he leave?还是说虚拟语气中的leave的用法呢?
答
虚拟语气的if 条件句里的 将来时,是 be to 的形式；又由于虚拟事态if句中 没有单数be动词,所以是were. 所以是 if he were to