YOU SAID:
I have a surprise for you, my friend.
INTO JAPANESE
あなた、私の友人にサプライズがあります。
BACK INTO ENGLISH
You, my friend has a surprise.
INTO JAPANESE
友人か
BACK INTO ENGLISH
You my friend?
INTO JAPANESE
友人か
BACK INTO ENGLISH
You my friend?
That didn't even make that much sense in English.