YOU SAID:

cause i may be bad bad but im perfectly good at it

INTO JAPANESE

原因私は悪い悪いかもしれませんが、私はそれが完全に得意です

BACK INTO ENGLISH

Cause I may be bad or bad, but I'm completely good at it

INTO JAPANESE

原因私は悪いか悪いかもしれませんが、私はそれが完全に得意です

BACK INTO ENGLISH

Cause I may be bad or bad, but I'm completely good at it