YOU SAID:

where did I place the potato. I last had it in the tanning salon.

INTO JAPANESE

私はジャガイモをどこに置いたのですか?私は最後に日焼けサロンでそれを持っていました。

BACK INTO ENGLISH

Where did I put the potatoes?

INTO JAPANESE

ジャガイモはどこに置いたの?

BACK INTO ENGLISH

Where did you put the potatoes?

INTO JAPANESE

ジャガイモはどこに置きましたか。

BACK INTO ENGLISH

Where did you put the potatoes?