Do you 'sincerely' [='really'] believe that the country is better off now?
Some people are questioning the 'sincerity' of her promises.
I 'sincerely' hope that you do a better job next time.
(..) In order to join my fiance abroad. I don't want to see my mom yet. You may tell her that. You're only wasting your time and my mom is wasting her money. Your sincere Martha Pigot. Satisfied? As you say. What do you think about it? I think I'm being taken for a fool. And you? (..)1981 To Kill a Cop