YOU SAID:
I would like to order a grande iced coffee please.
INTO JAPANESE
グランデアイスコーヒーをお願いします。
BACK INTO ENGLISH
Grande iced coffee, please.
INTO JAPANESE
グランデのアイスコーヒーをください。
BACK INTO ENGLISH
Grande iced coffee, please.
That didn't even make that much sense in English.