Kalmar “presuppose” fi’ili ce da ke nufin zaci ko buqatar wani abu ya zama gaskiya ko wanzuwa kafin wani abu ya faru ko a yi la’akari da shi. Ya ƙunshi ɗaukar wani abu a matsayin abin da aka bayar ko yanayin da aka rigaya ya kasance don kafa ko ginawa akan hujja, ka'ida, ko layin tunani. Tsammani yakan ƙunshi kafa tushen ƙarin tattaunawa, bincike, ko bincike.
