YOU SAID:

My friend is coming over and I want to kill her

INTO JAPANESE

私の友人が来て、私は彼女を殺したい

BACK INTO ENGLISH

My friend and I wanted to kill her

INTO JAPANESE

私の友人と私は彼女を殺したいと思った

BACK INTO ENGLISH

I thought my friend and I wanted to kill her

INTO JAPANESE

私の友人と思ったし、彼女を殺したかった

BACK INTO ENGLISH

I thought my friend and I wanted to kill her