这话怎么用英语表达～～

When I first meet you,I have the feeling that We have known before.At that time I have known that We would be friends or enemy.

When I met you the first time, I had the feeling as if we had met before. Then, I knew that we would be either friend or opponent.

At the first sight with you, I got the feeling as if we had met before. I knew that we could be nothing but friend or opponent.

中文：当我第一眼见到你,有一种似曾相识的感觉,那时,我就知道我们不是朋友就是对手

英文：When the first time I saw you, there was a feeling of deja vu, then, I know we are not friends but the opponent 。