YOU SAID:
i will kill all your family memmbers be safe
INTO JAPANESE
私はあなたの家族全員を殺します安全です
BACK INTO ENGLISH
I will kill your whole family safe
INTO JAPANESE
私はあなたの家族全員を無事に殺します
BACK INTO ENGLISH
I will kill your whole family safely
INTO JAPANESE
私はあなたの家族全員を無事に殺します
BACK INTO ENGLISH
I will kill your whole family safely
That didn't even make that much sense in English.