YOU SAID:

don't tell me you're on a diet

INTO JAPANESE

ダイエット中だと言わないで

BACK INTO ENGLISH

Do not say that you are on a diet

INTO JAPANESE

あなたが食事をしていると言ってはいけません

BACK INTO ENGLISH

Do not say that you are eating

INTO JAPANESE

あなたが食べていると言ってはいけません

BACK INTO ENGLISH

Do not say that you are eating