YOU SAID:

I need to go to the rest room. Ill be back

INTO JAPANESE

私はトイレに行く必要があります。戻ってきます

BACK INTO ENGLISH

I need to go to the bathroom. Return

INTO JAPANESE

トイレに行きたい

BACK INTO ENGLISH

I gotta go to the bathroom.

INTO JAPANESE

ちょっとトイレ

BACK INTO ENGLISH

I gotta go to the bathroom.