YOU SAID:
kill him if you love him
INTO JAPANESE
あなたは彼を愛していれば彼を殺します
BACK INTO ENGLISH
You will kill him if you love him
INTO JAPANESE
あなたは彼を愛していれば、あなたは彼を殺すだろう
BACK INTO ENGLISH
If you love him, you will kill him
INTO JAPANESE
あなたは彼を愛しているなら、あなたは彼を殺すだろう
BACK INTO ENGLISH
If you love him, you will kill him
That didn't even make that much sense in English.