YOU SAID:
Tomorrow I going to eat potatoes with chocolate
INTO JAPANESE
明日はチョコレート入りのジャガイモを食べに行く。
BACK INTO ENGLISH
I'm going to eat a potato with chocolate tomorrow.
INTO JAPANESE
明日ポテトとチョコレートを食べるつもりです。
BACK INTO ENGLISH
I'm going to eat potatoes and chocolate tomorrow.
INTO JAPANESE
私は明日ジャガイモとチョコレートを食べるつもりです。
BACK INTO ENGLISH
I'm going to eat potatoes and chocolate tomorrow.
That didn't even make that much sense in English.