请问 如果我是你 用英语怎么说？

If I were you 必须用虚拟语气

if i were you用虚拟语气，意思是说我不可能是你，我只可能是我自己，所以只有虚拟成我自己是你

If I were you.(虚拟语气)

If I were you。 虚拟语气。