We can often choose between more basic, highly grammaticalized, ways to express a given meaning, and more verbose ways of doing so. Thus, in English, we may say “Brenda can catch the train” or “it is possible that Brenda will catch the train”, with quite similar interpretations. In my article with Anna Margetts, we argue that expressions of possibility in Daakaka and Saliba-Logea correspond to it is possible that in terms of their syntactic complexity, but to can in terms of their paradigmatic properties, frequencies and meaning. Look at the publication here or download the preprint.