YOU SAID:
The slays are slaying so hard
INTO JAPANESE
殺し屋たちはとても激しく殺してる
BACK INTO ENGLISH
The killers kill very hard
INTO JAPANESE
殺人者は非常に激しく殺します
BACK INTO ENGLISH
the murderer kills very violently
INTO JAPANESE
殺人者は非常に暴力的に殺します
BACK INTO ENGLISH
the murderer kills very violently
That didn't even make that much sense in English.