YOU SAID:
can I have your cookie ?
INTO JAPANESE
クッキーを頂けますか ?
BACK INTO ENGLISH
Can you give me a cookie?
INTO JAPANESE
クッキーをくれませんか。
BACK INTO ENGLISH
Will you give me a cookie?
INTO JAPANESE
クッキーをくれませんか。
BACK INTO ENGLISH
Will you give me a cookie?
That didn't even make that much sense in English.