1. There is no chance of getting tickets to the theatre. 2. This play is not tragedy. 3. Our seats are not in the sixth row of the stalls. 4. Those are not very fine seats. 5. We shall not have to show our tickets to the usher. 6. There are not any people that smoke in the theatre. 7. Ann doesn't goes to the theatre every week. 8. We don't buy tickets to the theatre at thebox-office.9. They don't enjoyed the performance very much.