must patrol
Regular verb: patrol - patrolled- patrolled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must patrol
you must patrol
he must patrol
we must patrol
you must patrol
they must patrol 	I must be patrolling
you must be patrolling
he must be patrolling
we must be patrolling
you must be patrolling
they must be patrolling	I must have patrolled
you must have patrolled
he must have patrolled
we must have patrolled
you must have patrolled
they must have patrolled	I must have been patrolling
you must have been patrolling
he must have been patrolling
we must have been patrolling
you must have been patrolling
they must have been patrolling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not patrol
you must not patrol
he must not patrol
we must not patrol
you must not patrol
they must not patrol 	I must not be patrolling
you must not be patrolling
he must not be patrolling
we must not be patrolling
you must not be patrolling
they must not be patrolling	I must not have patrolled
you must not have patrolled
he must not have patrolled
we must not have patrolled
you must not have patrolled
they must not have patrolled	I must not have been patrolling
you must not have been patrolling
he must not have been patrolling
we must not have been patrolling
you must not have been patrolling
they must not have been patrolling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I patrol?
must you patrol?
must he patrol?
must we patrol?
must you patrol?
must they patrol? 	must I be patrolling?
must you be patrolling?
must he be patrolling?
must we be patrolling?
must you be patrolling?
must they be patrolling? 	must I have patrolled?
must you have patrolled?
must he have patrolled?
must we have patrolled?
must you have patrolled?
must they have patrolled? 	must I have been patrolling?
must you have been patrolling?
must he have been patrolling?
must we have been patrolling?
must you have been patrolling?
must they have been patrolling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not patrol?
must you not patrol?
must he not patrol?
must we not patrol?
must you not patrol?
must they not patrol? 	must I not be patrolling?
must you not be patrolling?
must he not be patrolling?
must we not be patrolling?
must you not be patrolling?
must they not be patrolling? 	must I not have patrolled?
must you not have patrolled?
must he not have patrolled?
must we not have patrolled?
must you not have patrolled?
must they not have patrolled? 	must I not have been patrolling?
must you not have been patrolling?
must he not have been patrolling?
must we not have been patrolling?
must you not have been patrolling?
must they not have been patrolling?