Verb conjugation of "desperdiciar" in Spanish

In the meantime I am listening to some Spanish CDs. They are intended for the car, but no one can tell you when to listen to it, how many times and how often. Please understand that I work a lot.
After placing my luggage there I decided to walk into town and rent a bike. The neighbor of the guest house stopped me on the street and asked me if I was Mike. She told me that she was Luisa.
The Lagoon Explorer had only room for eight passengers and crew. We were really excited once we saw the boat, as it looked beautiful. There was a couple from D.C. which also booked the same boat.