1) It has nothing to do with me.
这事与我无干。
2) It doesn't affect me/matter to me.
这事与我不相干。
3) It' s no concern of mine, ie I am not involved in it or I have no responsibility for it.
这事与我无关.
4) It's none of your business.; It has nothing to do with you.
这事与你无干。
6) It has nothing to do with us.
这事跟我们无关。
参考词条