YOU SAID:

we gotta kill them before they kill us

INTO JAPANESE

彼らが私たちを殺す前に殺さなければならない

BACK INTO ENGLISH

We have to kill them before they kill us.

INTO JAPANESE

彼らが私たちを殺す前に、我々は彼らを殺す必要があります。

BACK INTO ENGLISH

Before they kill us, we need to kill them.

INTO JAPANESE

彼らが私たちを殺す前に、我々は彼らを殺す必要があります。

BACK INTO ENGLISH

Before they kill us, we need to kill them.