YOU SAID:
I would like the green tea please
INTO JAPANESE
緑茶をお願いします
BACK INTO ENGLISH
I'd like green tea
INTO JAPANESE
緑茶が欲しいのですが
BACK INTO ENGLISH
I want green tea
INTO JAPANESE
緑茶が欲しい
BACK INTO ENGLISH
I want green tea
Come on, you can do better than that.