YOU SAID:
My brother has to take a dump so he’s going to use my cats litter box
INTO JAPANESE
私の兄は私の猫のトイレを使うためにダンプを取る必要があります
BACK INTO ENGLISH
My brother needs to take a dump to use my cat toilet
INTO JAPANESE
私の兄は私の猫のトイレを使用するためにダンプを取る必要があります
BACK INTO ENGLISH
My brother needs to take a dump to use my cat toilet
That didn't even make that much sense in English.