YOU SAID:

I only eat tomatoes, not potatoes

INTO JAPANESE

私はトマトを食べるないポテト

BACK INTO ENGLISH

I don't eat tomatoes and potatoes.

INTO JAPANESE

私は、トマトとジャガイモを食べてはいけない。

BACK INTO ENGLISH

Do I eat tomatoes and potatoes.

INTO JAPANESE

トマトとジャガイモを食べるか。

BACK INTO ENGLISH

Or eat tomatoes and potatoes.

INTO JAPANESE

または、トマトとポテトを食べる。

BACK INTO ENGLISH

Or eat tomatoes and potatoes.