YOU SAID:

Hey, I would like a large coffee please.

INTO JAPANESE

ねえ、大盛りのコーヒーをお願いします。

BACK INTO ENGLISH

Hey, I'd like a big cup of coffee, please.

INTO JAPANESE

ねえ、大きなコーヒーをお願いします。

BACK INTO ENGLISH

Hey, I'd like a big cup of coffee, please.