YOU SAID:

if a potato swam under the ocean and the potato swam back up then will it potato the fish?

INTO JAPANESE

ジャガイモが海の下で泳いで、ジャガイモが戻って泳いだ場合、それは魚をジャガイモにしますか？

BACK INTO ENGLISH

If a potato swims under the sea and the potato swims back, does it make the fish a potato?

INTO JAPANESE

じゃがいもが海の下を泳いで戻ってきたら、魚はじゃがいもになりますか？

BACK INTO ENGLISH

If the potatoes swim under the sea and come back, will the fish become potatoes?

INTO JAPANESE

じゃがいもが海の下を泳いで戻ってきたら、魚はじゃがいもになりますか？

BACK INTO ENGLISH

If the potatoes swim under the sea and come back, will the fish become potatoes?