YOU SAID:
Did you watch Demon Slayer yet?
INTO JAPANESE
デーモンスレイヤーはもう見ましたか?
BACK INTO ENGLISH
Have you seen the Demon Slayer yet?
INTO JAPANESE
鬼滅の刃を見たことがありますか?
BACK INTO ENGLISH
Have you ever seen the Devil's Blade?
INTO JAPANESE
悪魔の刃を見たことがありますか?
BACK INTO ENGLISH
Have you ever seen the Devil's Blade?
That didn't even make that much sense in English.