I must authorize you must authorize he must authorize we must authorize you must authorize they must authorize
V-ing form
I must be authorizing you must be authorizing he must be authorizing we must be authorizing you must be authorizing they must be authorizing
Perfect
I must have authorized you must have authorized he must have authorized we must have authorized you must have authorized they must have authorized
V-ing perfect
I must have been authorizing you must have been authorizing he must have been authorizing we must have been authorizing you must have been authorizing they must have been authorizing
Negation
Simple form
I must not authorize you must not authorize he must not authorize we must not authorize you must not authorize they must not authorize
V-ing form
I must not be authorizing you must not be authorizing he must not be authorizing we must not be authorizing you must not be authorizing they must not be authorizing
Perfect
I must not have authorized you must not have authorized he must not have authorized we must not have authorized you must not have authorized they must not have authorized
V-ing perfect
I must not have been authorizing you must not have been authorizing he must not have been authorizing we must not have been authorizing you must not have been authorizing they must not have been authorizing
Interrogative form
Simple form
must I authorize? must you authorize? must he authorize? must we authorize? must you authorize? must they authorize?
V-ing form
must I be authorizing? must you be authorizing? must he be authorizing? must we be authorizing? must you be authorizing? must they be authorizing?
Perfect
must I have authorized? must you have authorized? must he have authorized? must we have authorized? must you have authorized? must they have authorized?
V-ing perfect
must I have been authorizing? must you have been authorizing? must he have been authorizing? must we have been authorizing? must you have been authorizing? must they have been authorizing?
Interro-negative form
Simple form
must I not authorize? must you not authorize? must he not authorize? must we not authorize? must you not authorize? must they not authorize?
V-ing form
must I not be authorizing? must you not be authorizing? must he not be authorizing? must we not be authorizing? must you not be authorizing? must they not be authorizing?
Perfect
must I not have authorized? must you not have authorized? must he not have authorized? must we not have authorized? must you not have authorized? must they not have authorized?
V-ing perfect
must I not have been authorizing? must you not have been authorizing? must he not have been authorizing? must we not have been authorizing? must you not have been authorizing? must they not have been authorizing?