YOU SAID:

I wish I had a potato to hit the wall with.

INTO JAPANESE

壁にぶつかるジャガイモがあったらいいのに。

BACK INTO ENGLISH

I wish I had a potato that hit the wall.

INTO JAPANESE

じゃがいもが壁にぶつかったらいいのに。

BACK INTO ENGLISH

I wish the potatoes hit the wall.

INTO JAPANESE

じゃがいもが壁にぶつかったらいいのに。

BACK INTO ENGLISH

I wish the potatoes hit the wall.