YOU SAID:
Hey did you go to the party where the girl fell last night?
INTO JAPANESE
ねえ、女の子が昨夜落ちたパーティーに行ったの?
BACK INTO ENGLISH
Hey, did you go to the party where the girl fell last night?
INTO JAPANESE
ねえ、あなたは女の子が昨夜落ちたパーティーに行きましたか?
BACK INTO ENGLISH
Hey, did you go to the party where the girl fell last night?
That didn't even make that much sense in English.