YOU SAID:

I will set your mother’s refrigerator on fire

INTO JAPANESE

お母さんの冷蔵庫に火をつけてやる

BACK INTO ENGLISH

I'll set your mom's fridge on fire

INTO JAPANESE

お母さんの冷蔵庫に火をつけてあげる

BACK INTO ENGLISH

I'll set your mom's fridge on fire