YOU SAID:

I go to the toilet when I need to

INTO JAPANESE

必要なときにトイレに行きます

BACK INTO ENGLISH

Go to the bathroom when needed

INTO JAPANESE

必要に応じてトイレに行く

BACK INTO ENGLISH

Go to the bathroom if necessary

INTO JAPANESE

必要に応じてトイレに行く

BACK INTO ENGLISH

Go to the bathroom if necessary