YOU SAID:
i can't understand alien
INTO JAPANESE
エイリアンがわからない
BACK INTO ENGLISH
I don't know the aliens
INTO JAPANESE
私はエイリアンを知りません
BACK INTO ENGLISH
I don't know aliens
INTO JAPANESE
私はエイリアンを知りません
BACK INTO ENGLISH
I don't know aliens
That didn't even make that much sense in English.