must vitalize
Regular verb: vitalize - vitalized- vitalized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must vitalize
you must vitalize
he must vitalize
we must vitalize
you must vitalize
they must vitalize 	I must be vitalizing
you must be vitalizing
he must be vitalizing
we must be vitalizing
you must be vitalizing
they must be vitalizing	I must have vitalized
you must have vitalized
he must have vitalized
we must have vitalized
you must have vitalized
they must have vitalized	I must have been vitalizing
you must have been vitalizing
he must have been vitalizing
we must have been vitalizing
you must have been vitalizing
they must have been vitalizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not vitalize
you must not vitalize
he must not vitalize
we must not vitalize
you must not vitalize
they must not vitalize 	I must not be vitalizing
you must not be vitalizing
he must not be vitalizing
we must not be vitalizing
you must not be vitalizing
they must not be vitalizing	I must not have vitalized
you must not have vitalized
he must not have vitalized
we must not have vitalized
you must not have vitalized
they must not have vitalized	I must not have been vitalizing
you must not have been vitalizing
he must not have been vitalizing
we must not have been vitalizing
you must not have been vitalizing
they must not have been vitalizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I vitalize?
must you vitalize?
must he vitalize?
must we vitalize?
must you vitalize?
must they vitalize? 	must I be vitalizing?
must you be vitalizing?
must he be vitalizing?
must we be vitalizing?
must you be vitalizing?
must they be vitalizing? 	must I have vitalized?
must you have vitalized?
must he have vitalized?
must we have vitalized?
must you have vitalized?
must they have vitalized? 	must I have been vitalizing?
must you have been vitalizing?
must he have been vitalizing?
must we have been vitalizing?
must you have been vitalizing?
must they have been vitalizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not vitalize?
must you not vitalize?
must he not vitalize?
must we not vitalize?
must you not vitalize?
must they not vitalize? 	must I not be vitalizing?
must you not be vitalizing?
must he not be vitalizing?
must we not be vitalizing?
must you not be vitalizing?
must they not be vitalizing? 	must I not have vitalized?
must you not have vitalized?
must he not have vitalized?
must we not have vitalized?
must you not have vitalized?
must they not have vitalized? 	must I not have been vitalizing?
must you not have been vitalizing?
must he not have been vitalizing?
must we not have been vitalizing?
must you not have been vitalizing?
must they not have been vitalizing?