YOU SAID:

I'm going to go to my grandmas after school and I don't know what I will eat.

INTO JAPANESE

学校が終わったらおばあちゃんのところに行くつもりですが、何を食べるかわかりません。

BACK INTO ENGLISH

I'm going to visit my grandma after school, but I don't know what to eat.

INTO JAPANESE

学校が終わったらおばあちゃんのところに行くつもりですが、何を食べたらいいのかわかりません。

BACK INTO ENGLISH

I'm going to visit my grandma after school, but I don't know what to eat.