YOU SAID:

I want to kill your family.

INTO JAPANESE

あなたの家族を殺すためにしたいです。

BACK INTO ENGLISH

I'd like to kill your family.

INTO JAPANESE

私はあなたの家族を殺すしたいと思います。

BACK INTO ENGLISH

I will kill your family and would like to.

INTO JAPANESE

私はあなたの家族を殺すし、したいと思います。

BACK INTO ENGLISH

I will kill your family and would like to.