YOU SAID:
i have loved you and you haven't known it
INTO JAPANESE
私はあなたを愛していて、あなたはそれを知らない
BACK INTO ENGLISH
I love you and you don't know it
INTO JAPANESE
私はあなたを愛し、あなたはそれを知らない
BACK INTO ENGLISH
I love you and you don't know it
That didn't even make that much sense in English.