YOU SAID:
When I saw you I fell in love with you.
INTO JAPANESE
私があなたを見たとき、私はあなたに恋をしました。
BACK INTO ENGLISH
When I saw you, I fell in love with you.
INTO JAPANESE
あなたを見たとき、私はあなたに恋をしました。
BACK INTO ENGLISH
When I saw you, I fell in love with you.
That didn't even make that much sense in English.