YOU SAID:
A potato came flying in my room
INTO JAPANESE
ジャガイモが私の部屋に飛んで来ました
BACK INTO ENGLISH
Potatoes flew into my room
INTO JAPANESE
ジャガイモが私の部屋に飛び込んできました
BACK INTO ENGLISH
Potato jumped into my room
INTO JAPANESE
ジャガイモが私の部屋に飛び込んだ
BACK INTO ENGLISH
Potato jumped into my room
Okay, I get it, you like Translation Party.