82.- Verbos modales de permiso. B2.

1. You’re a child and you formally ask a teacher for permission to leave the room. 
2. Ask for permission not to call John. Use informal language. 
3. You ask your boss for permission to leave early. 
4. Ask a friend for permission to use her phone. Be informal. 
5. Ask for permission to go to the party. Be polite and use a negative question.