* Formal: We prearranged a meeting with the client for next week.
* Informal: My friends and I prearranged to meet at the park after school.
* Specific: The caterer prearranged the seating chart for the wedding reception.
* Active: The travel agent prearranged all the hotel bookings for our trip.
* Passive: The transportation to the airport was prearranged for the guests.
Let me know if you'd like to see more examples, or if you have a specific context in mind!