YOU SAID:

I've been staring at the edge of the water long as I can remember never really knowing why.

INTO JAPANESE

理由がわからないのを覚えている限り、私は水の端を見つめてきました。

BACK INTO ENGLISH

As long as I don't know why, I've been staring at the edge of the water.

INTO JAPANESE

理由がわからない限り、私は水の端を見つめてきました。

BACK INTO ENGLISH

Unless I knew why, I was staring at the edge of the water.

INTO JAPANESE

理由がわからない限り、私は水の端を見つめていました。

BACK INTO ENGLISH

Unless I knew why, I was staring at the edge of the water.