为什么'如果我是你'是If I were you呢?

如果我敬岩是你’是一种虚拟语气，因为压根我就不是你。对于现实的一种假设，这种语气be动词的使用就是要变成were的，动词就变成过去式（我说的是对现在）。If + were/did ，主语 + would/might/should/could + do(表示对现在情况的假设) If I were you, I would not be so proud. 如果我判稿知是你，我会很骄傲。If I had a cellphone, it would be convenient for me to get in touch with others.如果我有手机，联系别人就会掘消很方便。If I were in your position, I would think better of it. 如果我处于你的位置，我会往好的方面想。If I were her, I would apologize first.如果我是她，我会先道歉。