1. Pepito has been learning Chinese for two years.
2. Sara isn't here. She has been at lunch for ten minutes
3. Is this flat yours or do you rent it?
4. Look at how black those clouds are! It is going to rain this afternoon.
5. I wish there were more wine left!
6. Drugs were being sold outside my flat when I got home.
7. Steve is believed to have stolen the money.
8. That old tree was blown down by the storm.