The absolutive cases are used to mark the subjects of transitive verbs.

The abessive cases indicate the absence or lack of something.

He carried two attaché cases with him on his business trip.

The benefactive cases are used to indicate the recipients of an action.

There are always a few nut cases in every crowd.

The space cases were filled with astronaut supplies.

I have prepared several test cases for the software.

She has dealt with many head-cases in her career.

There are many head cases in the hospital.

Hey, students! Please gather in the auditorium.