YOU SAID:
the potato flew around my room
INTO JAPANESE
ジャガイモは私の部屋の周りを飛んできた
BACK INTO ENGLISH
Potatoes flew around my room
INTO JAPANESE
ジャガイモは私の部屋の周りを飛んだ
BACK INTO ENGLISH
Potatoes flew around my room
That didn't even make that much sense in English.