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.

She lost her space case on the way to the airport.

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.

The students are studying in the allative cases.