YOU SAID:

I'm going to fight someone and make them die

INTO JAPANESE

誰かと戦って死なせるつもりだ

BACK INTO ENGLISH

I'm going to fight someone to death

INTO JAPANESE

私は誰かと死ぬまで戦うつもりだ

BACK INTO ENGLISH

I'm going to fight someone to the death

INTO JAPANESE

私は誰かと死ぬまで戦うつもりだ

BACK INTO ENGLISH

I'm going to fight someone to the death