YOU SAID:

when i met you in the summer til my heart beat sound we fell in love as the leaves turned brown

INTO JAPANESE

夏に君に出会ったとき、心臓の鼓動が聞こえるまで、葉が茶色に染まるころに僕らは恋に落ちた

BACK INTO ENGLISH

When I met you in the summer, till I heard your heartbeat, when the leaves turned brown, we fell in love.

INTO JAPANESE

夏に君に出会って、君の鼓動が聞こえるまで、葉が茶色く染まるまで、僕らは恋に落ちた。

BACK INTO ENGLISH

When I met you in the summer, we fell in love until I heard your heartbeat and the leaves turned brown.

INTO JAPANESE

夏にあなたに会ったとき、あなたの鼓動が聞こえて葉が茶色になるまで、私たちは恋に落ちました。

BACK INTO ENGLISH

When I met you in the summer, we fell in love until I heard your heartbeat and the leaves turned brown.