Modal verbs

You must study for a better future.

You can make the future better through education.

You must focus more on the classroom.

You must have patience while listening to an explanation.

You are allowed to take decisions on certain occasions

You mustn´t use cell phone in classroom.

You can´t use headset in class.

You must respect your teachers.

You can and should help your neighbor.

You can practice sports to have good health.

You must do your homework.

You must put some things aside to focus on your priorities.

You're not allowed to do what you want inside the classroom.

You must have a good dialogue with your colleagues.

You must´t arrive late in class.