Interviewer: Hi, Duncan. Tell me a bit about your life. How long have you worked (you/work) as a cowboy on your parents' farm?
Duncan: I have been (be) a cowboy since I was nineteen.
Interviewer: Have you ever lived (you / ever/live) in a city?
Duncan: Yes, I lived in Denver, Colorado many years ago. I went (go) to school there.
Interviewer: Do you want (you/want) to be a cowboy since you were little?
Duncan: Not really. When I was a kid, I wanted (want) to be an astronaut! But I missed the farm, so I came (come) back here a year ago. It's the best place in the world!