YOU SAID:
My dad is a bad doctor
INTO JAPANESE
私の父は悪い医者です
BACK INTO ENGLISH
My father is a bad doctor
INTO JAPANESE
父は医者です。
BACK INTO ENGLISH
My father is a doctor.
INTO JAPANESE
父は医者です。
BACK INTO ENGLISH
My father is a doctor.
That didn't even make that much sense in English.