YOU SAID:

Don't tell me you've never been hearing of Sirius Black.

INTO JAPANESE

シリウス・ブラックのことは聞いたことがないとは言わないで

BACK INTO ENGLISH

Don't tell me you've never heard of Sirius Black.

INTO JAPANESE

シリウス・ブラックを聞いたことがないとは言わないで

BACK INTO ENGLISH

Don't tell me you've never heard of Sirius Black.