YOU SAID:

I need to use the restroom, it's an emergency.

INTO JAPANESE

トイレを使う必要があります、緊急です。

BACK INTO ENGLISH

You need to use the toilet, it's urgent.

INTO JAPANESE

あなたはトイレを使う必要があります、それは緊急です。

BACK INTO ENGLISH

You need to use the toilet, it's urgent.