This document provides examples of using the prepositions "on", "in", and "at" with times and locations. It lists common phrases like "on the chair", "in the house", and "at the station". It then expands to other prepositions indicating location and position, such as "above", "below", "under", "next to", and "in front of". Finally, it gives examples of using "on", "in", and "at" with dates, days, times, and periods like months, seasons, and years.