1. They’re listening to pop music now. They aren’t listening to pop music now. 2. Many people can speak English nowadays. Many people can’t speak English nowadays. 3. You must make your bed after you get up every day. You don’t have to make your bed after you get up every day. 4. His mother has a beautiful car. 5. We need a pen and piece of paper. We don't need a pen and piece of paper.

His mother doesn’t have a beautiful car.