must immaterialise
Verbo regular: immaterialise - immaterialised- immaterialised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must immaterialise
you must immaterialise
he must immaterialise
we must immaterialise
you must immaterialise
they must immaterialise 	I must be immaterialising
you must be immaterialising
he must be immaterialising
we must be immaterialising
you must be immaterialising
they must be immaterialising	I must have immaterialised
you must have immaterialised
he must have immaterialised
we must have immaterialised
you must have immaterialised
they must have immaterialised	I must have been immaterialising
you must have been immaterialising
he must have been immaterialising
we must have been immaterialising
you must have been immaterialising
they must have been immaterialising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't immaterialise
you mustn't immaterialise
he mustn't immaterialise
we mustn't immaterialise
you mustn't immaterialise
they mustn't immaterialise 	I mustn't be immaterialising
you mustn't be immaterialising
he mustn't be immaterialising
we mustn't be immaterialising
you mustn't be immaterialising
they mustn't be immaterialising	I mustn't have immaterialised
you mustn't have immaterialised
he mustn't have immaterialised
we mustn't have immaterialised
you mustn't have immaterialised
they mustn't have immaterialised	I mustn't have been immaterialising
you mustn't have been immaterialising
he mustn't have been immaterialising
we mustn't have been immaterialising
you mustn't have been immaterialising
they mustn't have been immaterialising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I immaterialise?
must you immaterialise?
must he immaterialise?
must we immaterialise?
must you immaterialise?
must they immaterialise? 	must I be immaterialising?
must you be immaterialising?
must he be immaterialising?
must we be immaterialising?
must you be immaterialising?
must they be immaterialising? 	must I have immaterialised?
must you have immaterialised?
must he have immaterialised?
must we have immaterialised?
must you have immaterialised?
must they have immaterialised? 	must I have been immaterialising?
must you have been immaterialising?
must he have been immaterialising?
must we have been immaterialising?
must you have been immaterialising?
must they have been immaterialising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I immaterialise?
mustn't you immaterialise?
mustn't he immaterialise?
mustn't we immaterialise?
mustn't you immaterialise?
mustn't they immaterialise? 	mustn't I be immaterialising?
mustn't you be immaterialising?
mustn't he be immaterialising?
mustn't we be immaterialising?
mustn't you be immaterialising?
mustn't they be immaterialising? 	mustn't I have immaterialised?
mustn't you have immaterialised?
mustn't he have immaterialised?
mustn't we have immaterialised?
mustn't you have immaterialised?
mustn't they have immaterialised? 	mustn't I have been immaterialising?
mustn't you have been immaterialising?
mustn't he have been immaterialising?
mustn't we have been immaterialising?
mustn't you have been immaterialising?
mustn't they have been immaterialising?