Question

到底是If I was you 还是If I were you？

Answer 1

都可以用，If I were you更加正式，适用于书面语或者正式场合下。例句：If I were you, Mrs Gretchen, I just wouldn't worry about it 要是我是你，格蕾琴夫人，我一点都不会担心。

if I was you比较口语化，适用于和朋友聊天的场合下。例句：If I was you, I'd watch out who I was talking to. 如果我是你，我会提防那个人。

was和were的区别及用法

1、was和were都是过去时。was是is和am的一般过去式，were是are的一般过去式。

2、was与I/He/She/It连用，were与We/They/You连用。

was

1、Right off I want to confess that I was wrong.我立刻就想承认我错了。

2、He was already rich.他已经很富有了。

3、I was astounded by its beauty.它的美丽震撼了我。

were

1、They were photographed and had their fingerprints taken.他们被拍了照，还被提取了指纹。

2、We were all badly bitten by mosquitoes.我们都被蚊子咬惨了。

3、They were good friends during the university.他们大学时是好朋友。

Answer 2

应该用 if I were you !