Question

Did I see him,I would tell him all about it.这句是虚拟语气吗？怎么看出来的？

我知道是省略了If，语法书里写了，但我不太明白从哪看出这句话是虚拟语气的

Answer 1

这是个虚拟语气的句子，省略了if ,用了倒装。
If I saw him , I would tell him all about it . 我要是现在看到他，我会告诉他一切。
只有在虚拟语气的句子里，if 才可以省略，句子倒装。