about one's own family
トムは自分の家族について話した。
Tom talked about his family.
トムは自分の家族についてあまり話さない。
Tom doesn't talk much about his family.
彼女は自分の家族について話をした。
She talked about her family.
トムは自分の家族について、一切話さない。
Tom never talks about his family.