Your laptop has stopped working. Your roommate knows more about computers than you, so you've asked him to try to fix it. You describe what happened to it.
You've organized a professional conference. You're giving an opening speech. You want to thank the people who helped you, so you start by talking about how hard those people worked.
You used to live in an old, dirty house when you were younger. Now you're telling your children about it.
You visited your friend Edith's new house last week, and you had to drive twenty minutes to get there. You tell your friends how far away it is.
A woman is walking in front of you, when a piece of paper falls from her arm. You pick it up, and run ahead to give it back to her.