must materialize
Regular verb: materialize - materialized- materialized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must materialize
you must materialize
he must materialize
we must materialize
you must materialize
they must materialize 	I must be materializing
you must be materializing
he must be materializing
we must be materializing
you must be materializing
they must be materializing	I must have materialized
you must have materialized
he must have materialized
we must have materialized
you must have materialized
they must have materialized	I must have been materializing
you must have been materializing
he must have been materializing
we must have been materializing
you must have been materializing
they must have been materializing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't materialize
you mustn't materialize
he mustn't materialize
we mustn't materialize
you mustn't materialize
they mustn't materialize 	I mustn't be materializing
you mustn't be materializing
he mustn't be materializing
we mustn't be materializing
you mustn't be materializing
they mustn't be materializing	I mustn't have materialized
you mustn't have materialized
he mustn't have materialized
we mustn't have materialized
you mustn't have materialized
they mustn't have materialized	I mustn't have been materializing
you mustn't have been materializing
he mustn't have been materializing
we mustn't have been materializing
you mustn't have been materializing
they mustn't have been materializing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I materialize?
must you materialize?
must he materialize?
must we materialize?
must you materialize?
must they materialize? 	must I be materializing?
must you be materializing?
must he be materializing?
must we be materializing?
must you be materializing?
must they be materializing? 	must I have materialized?
must you have materialized?
must he have materialized?
must we have materialized?
must you have materialized?
must they have materialized? 	must I have been materializing?
must you have been materializing?
must he have been materializing?
must we have been materializing?
must you have been materializing?
must they have been materializing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I materialize?
mustn't you materialize?
mustn't he materialize?
mustn't we materialize?
mustn't you materialize?
mustn't they materialize? 	mustn't I be materializing?
mustn't you be materializing?
mustn't he be materializing?
mustn't we be materializing?
mustn't you be materializing?
mustn't they be materializing? 	mustn't I have materialized?
mustn't you have materialized?
mustn't he have materialized?
mustn't we have materialized?
mustn't you have materialized?
mustn't they have materialized? 	mustn't I have been materializing?
mustn't you have been materializing?
mustn't he have been materializing?
mustn't we have been materializing?
mustn't you have been materializing?
mustn't they have been materializing?