Explaining dubious assertions

David Sosa argues that the knowledge account of assertion is unsatisfactory, because it cannot explain the oddness of what he calls dubious assertions. One such dubious assertion is of the form ‘P but I do not know whether I know that p.’ Matthew Benton has attempted to show how proponents of the knowledge account can explain what’s wrong this assertion. I show that Benton’s explanation is inadequate, and propose my own explanation of the oddness of this dubious assertion. I also explain what’s wrong with other dubious assertions mentioned by Sosa.