YOU SAID:

I sat on your mother's potato sack

INTO JAPANESE

お母さんのじゃがいも袋に座った

BACK INTO ENGLISH

I sat in my mom's potato bag

INTO JAPANESE

お母さんのポテトバッグに座った

BACK INTO ENGLISH

Sit in mom's potato bag

INTO JAPANESE

ママのポテトバッグに座る

BACK INTO ENGLISH

Sit in mom's potato bag