must materialise
Verbo regular: materialise - materialised- materialised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must materialise
you must materialise
he must materialise
we must materialise
you must materialise
they must materialise 	I must be materialising
you must be materialising
he must be materialising
we must be materialising
you must be materialising
they must be materialising	I must have materialised
you must have materialised
he must have materialised
we must have materialised
you must have materialised
they must have materialised	I must have been materialising
you must have been materialising
he must have been materialising
we must have been materialising
you must have been materialising
they must have been materialising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't materialise
you mustn't materialise
he mustn't materialise
we mustn't materialise
you mustn't materialise
they mustn't materialise 	I mustn't be materialising
you mustn't be materialising
he mustn't be materialising
we mustn't be materialising
you mustn't be materialising
they mustn't be materialising	I mustn't have materialised
you mustn't have materialised
he mustn't have materialised
we mustn't have materialised
you mustn't have materialised
they mustn't have materialised	I mustn't have been materialising
you mustn't have been materialising
he mustn't have been materialising
we mustn't have been materialising
you mustn't have been materialising
they mustn't have been materialising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I materialise?
must you materialise?
must he materialise?
must we materialise?
must you materialise?
must they materialise? 	must I be materialising?
must you be materialising?
must he be materialising?
must we be materialising?
must you be materialising?
must they be materialising? 	must I have materialised?
must you have materialised?
must he have materialised?
must we have materialised?
must you have materialised?
must they have materialised? 	must I have been materialising?
must you have been materialising?
must he have been materialising?
must we have been materialising?
must you have been materialising?
must they have been materialising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I materialise?
mustn't you materialise?
mustn't he materialise?
mustn't we materialise?
mustn't you materialise?
mustn't they materialise? 	mustn't I be materialising?
mustn't you be materialising?
mustn't he be materialising?
mustn't we be materialising?
mustn't you be materialising?
mustn't they be materialising? 	mustn't I have materialised?
mustn't you have materialised?
mustn't he have materialised?
mustn't we have materialised?
mustn't you have materialised?
mustn't they have materialised? 	mustn't I have been materialising?
mustn't you have been materialising?
mustn't he have been materialising?
mustn't we have been materialising?
mustn't you have been materialising?
mustn't they have been materialising?