你又不是

it's not as if you're

→ 你
phrase Uncommon #11,524
it's not as if you're Often used to reject or challenge an assumption, with 又 adding emphasis. The rest of the sentence gives the reason or qualification.
CH: 你又不是医生,怎么知道?
EN: It's not as if you're a doctor—how would you know?

你又不是家长,当然可以进去

You’re not a parent, so of course you can go in.

— 寄生虫 (2019)

否则它会惩罚我们的你又不是带人来践踏"区"吗?

Otherwise, it’ll punish us. Didn’t you bring people here to trample the “zone”?

— 潜行者 (1979)

你又不是记者

You're not a journalist.

— 甜蜜的生活 (1960)

再说你又不是不知道艇子在哪

Besides, it's not like you don't know where the boat is.

— 伊万的童年 (1962)

他家的情况你又不是不知道

You know what his family situation is like.

— 一个都不能少 (1999)

你又不是帮了我

It's not like you helped me.

— 一一 (2000)

你又不是长期员工

You're not a permanent employee anyway.

— 妈咪 (2014)

你又不是不知道

It's not like you don't know.

— 一一 (2000)

你又不是我朋友!

It’s not like you’re my friend!

— 怒火青春 (1995)

你又不是不知道我讨厌吃菜

It's not like you don't know I hate eating vegetables.

— 妈咪 (2014)

你又不是明天就出发,还有的是时间

You're not leaving tomorrow, so there's still plenty of time.

— 浪潮 (2008)

你又不是女人或者侏儒

It’s not like you’re a woman or a dwarf.

— 托尼·厄德曼 (2016)

你又不是男的

It's not like you're a guy.

— SoulMate (2016)