YOU SAID:
i go to the bathroom to eat breakfast
INTO JAPANESE
私は朝食を食べるためにトイレに行く
BACK INTO ENGLISH
I'm going to the bathroom for breakfast.
INTO JAPANESE
私は朝食のためにトイレに行くつもりです。
BACK INTO ENGLISH
I'm going to the bathroom for breakfast.
You've done this before, haven't you.