Using the subject 'usted' and the verb in the imperative or command form, tell a teacher or instructor three things she/he must do. then in the same form tell wht he/she must not do
1.Usted debe enseñar la clase. You must teach the class. 2.Usted debe ayudar los estudiantes. You must help the students. 3.Usted debe coregir papeles. You must revise paperwork.
