How to say these in Korean
how would you say these sentences in informal Korean?

-You know me so well
-You're winning
- i messed up
- Are you cheating on me?
- since when?

Also.. Is there a way to say "excuse me" informally? Like if your friend is in your way and you would like them to move, what would you say?

Thank you :D

Question

How to say these in Korean
how would you say these sentences in informal Korean?

-You know me so well
-You're winning
- i messed up 
- Are you cheating on me?
- since when?

Also.. Is there a way to say "excuse me" informally?  Like if your friend is in your way and you would like them to move, what would you say?

Thank you :D

Answer

You know me so well - 너는 나를 잘 알아.
You're winning - 네가 이기고 있어(prensent tense). 네가 이겼어(past tense)
i messed up - 내가 망쳤어. 
Are you cheating on me? - 네가 나를 속이고 있는거야?
since when? - 언제부터?

excuse me -  Like the situation you said, we can say 실례합니다.길 비켜주세요.if we say it informally,비켜 봐.it sounds impolite.

Answer

You know me so well :  넌 나를 너무 잘 알아

You're winning: 너가 이기고 있어

I messed up: 내가 망쳐버렸어

Are you cheating on me? : 나 속이고 있는거야 ? Or 바람 피고 있는거야?

Since when : 언제부터