Nik Taylor wrote: > > Daniel Andreasson wrote: > > That is, the '-vo' suffix inverses the cases. > > Why use case at all? If the agent is left of the patient, then use the > plain form of the noun, and if the agent is right of the patient use the > inverse, I love that idea, but what about dative? Is there any natural language that uses only 2 core cases? Something seems to make 3 the right number, and I often wonder why.