YOU SAID:

i was once a boy and then is died the end

INTO JAPANESE

私はかつて少年だった、そして最後には死んでしまった

BACK INTO ENGLISH

I was once a boy and ended up dead

INTO JAPANESE

かつて少年だった私は結局死んでしまった

BACK INTO ENGLISH

I was once a boy, but I ended up dying.

INTO JAPANESE

私はかつて少年だったが、結局死んでしまった。

BACK INTO ENGLISH

I was once a boy, but I ended up dying.