YOU SAID:

You ain't got no eyebrows

INTO JAPANESE

あなたは眉毛がない

BACK INTO ENGLISH

You do not have eyebrows

INTO JAPANESE

あなたは眉をひそめていません

BACK INTO ENGLISH

You are not flattening your eyebrows

INTO JAPANESE

あなたは眉を平らにしていません

BACK INTO ENGLISH

You are not flattening your eyebrows