If the language has morphological case, then the arguments of a transitive verb are marked using the agentive case for the subject and the patientive case for the object, while the argument of an intransitive verb may be marked as either.
Then the arguments of a transitive verb are marked using the agentive case for the subject. Then the arguments of a transitive verb are marked using the patientive case for the object. The argument of an intransitive verb may be marked as either. The language has morphological case.