must materialize
Verbo regular: materialize - materialized- materialized

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must materialize
you must materialize
she must materialize
we must materialize
you must materialize
they must materialize 	I must be materializing
you must be materializing
she must be materializing
we must be materializing
you must be materializing
they must be materializing	I must have materialized
you must have materialized
she 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
she must have been materializing
we must have been materializing
you must have been materializing
they must have been materializing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not materialize
you must not materialize
she must not materialize
we must not materialize
you must not materialize
they must not materialize 	I must not be materializing
you must not be materializing
she must not be materializing
we must not be materializing
you must not be materializing
they must not be materializing	I must not have materialized
you must not have materialized
she must not have materialized
we must not have materialized
you must not have materialized
they must not have materialized	I must not have been materializing
you must not have been materializing
she must not have been materializing
we must not have been materializing
you must not have been materializing
they must not have been materializing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I materialize?
must you materialize?
must she materialize?
must we materialize?
must you materialize?
must they materialize? 	must I be materializing?
must you be materializing?
must she be materializing?
must we be materializing?
must you be materializing?
must they be materializing? 	must I have materialized?
must you have materialized?
must she 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 she have been materializing?
must we have been materializing?
must you have been materializing?
must they have been materializing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not materialize?
must you not materialize?
must she not materialize?
must we not materialize?
must you not materialize?
must they not materialize? 	must I not be materializing?
must you not be materializing?
must she not be materializing?
must we not be materializing?
must you not be materializing?
must they not be materializing? 	must I not have materialized?
must you not have materialized?
must she not have materialized?
must we not have materialized?
must you not have materialized?
must they not have materialized? 	must I not have been materializing?
must you not have been materializing?
must she not have been materializing?
must we not have been materializing?
must you not have been materializing?
must they not have been materializing?