YOU SAID:
how bad is the granny?
INTO JAPANESE
おばあちゃんはどれくらいひどいの?
BACK INTO ENGLISH
How bad is your grandmother?
INTO JAPANESE
あなたのおばあちゃんはどれくらい悪いの?
BACK INTO ENGLISH
How bad is your grandmother?
That didn't even make that much sense in English.