YOU SAID:

i sometimes forget to wash the cat with your grandmother's fountain pen

INTO JAPANESE

おばあちゃんの万年筆で猫を洗うのを忘れることがあります

BACK INTO ENGLISH

Sometimes I forget to wash my cat with my grandma's fountain pen

INTO JAPANESE

おばあちゃんの万年筆で猫を洗うのを忘れることがあります

BACK INTO ENGLISH

Sometimes I forget to wash my cat with my grandma's fountain pen