YOU SAID:
please don't use the bathroom in the middle of class
INTO JAPANESE
授業中に浴室を使わないでください
BACK INTO ENGLISH
Please do not use the bathroom in class
INTO JAPANESE
クラスでは浴室を使わないでください
BACK INTO ENGLISH
Do not use the bathroom in the class
INTO JAPANESE
クラスではトイレを使わない
BACK INTO ENGLISH
Do not use the toilet in the class
INTO JAPANESE
クラスでトイレを使わないでください
BACK INTO ENGLISH
Please do not use the toilet in the class
INTO JAPANESE
クラスではトイレを使わないでください
BACK INTO ENGLISH
Please do not use the toilet in the class
That didn't even make that much sense in English.