YOU SAID:

if it hurts, don't do it

INTO JAPANESE

それが痛いならば、それをしないでください

BACK INTO ENGLISH

If it hurts, please do not do it

INTO JAPANESE

痛い場合はしないでください

BACK INTO ENGLISH

Please do not do it when it hurts

INTO JAPANESE

痛いときはしないでください

BACK INTO ENGLISH

Do not do it when it hurts

INTO JAPANESE

痛いときはやらない

BACK INTO ENGLISH

I do not do it when it hurts

INTO JAPANESE

痛いときはやらない

BACK INTO ENGLISH

I do not do it when it hurts