YOU SAID:

i want ice cream.....

INTO JAPANESE

私はアイスクリームが欲しい.

BACK INTO ENGLISH

I want ice cream.

INTO JAPANESE

アイスクリームが欲しい。

BACK INTO ENGLISH

Do you want some ice cream?

INTO JAPANESE

アイス食べる？

BACK INTO ENGLISH

Do you want some ice cream?