YOU SAID:

i will kill my uncle if he doesnt give me money i want 20 dollars

INTO JAPANESE

おじさんがお金をくれないならおじさんを殺す

BACK INTO ENGLISH

If he doesn't give me money, kill him

INTO JAPANESE

彼が私にお金を与えないなら、彼を殺してください

BACK INTO ENGLISH

Kill him if he doesn't give me money

INTO JAPANESE

彼が私にお金をくれないなら彼を殺しなさい

BACK INTO ENGLISH

Kill him if he doesn't give me money