must pervade
Verbo regular: pervade - pervaded- pervaded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must pervade
you must pervade
he must pervade
we must pervade
you must pervade
they must pervade 	I must be pervading
you must be pervading
he must be pervading
we must be pervading
you must be pervading
they must be pervading	I must have pervaded
you must have pervaded
he must have pervaded
we must have pervaded
you must have pervaded
they must have pervaded	I must have been pervading
you must have been pervading
he must have been pervading
we must have been pervading
you must have been pervading
they must have been pervading	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't pervade
you mustn't pervade
he mustn't pervade
we mustn't pervade
you mustn't pervade
they mustn't pervade 	I mustn't be pervading
you mustn't be pervading
he mustn't be pervading
we mustn't be pervading
you mustn't be pervading
they mustn't be pervading	I mustn't have pervaded
you mustn't have pervaded
he mustn't have pervaded
we mustn't have pervaded
you mustn't have pervaded
they mustn't have pervaded	I mustn't have been pervading
you mustn't have been pervading
he mustn't have been pervading
we mustn't have been pervading
you mustn't have been pervading
they mustn't have been pervading	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I pervade?
must you pervade?
must he pervade?
must we pervade?
must you pervade?
must they pervade? 	must I be pervading?
must you be pervading?
must he be pervading?
must we be pervading?
must you be pervading?
must they be pervading? 	must I have pervaded?
must you have pervaded?
must he have pervaded?
must we have pervaded?
must you have pervaded?
must they have pervaded? 	must I have been pervading?
must you have been pervading?
must he have been pervading?
must we have been pervading?
must you have been pervading?
must they have been pervading? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I pervade?
mustn't you pervade?
mustn't he pervade?
mustn't we pervade?
mustn't you pervade?
mustn't they pervade? 	mustn't I be pervading?
mustn't you be pervading?
mustn't he be pervading?
mustn't we be pervading?
mustn't you be pervading?
mustn't they be pervading? 	mustn't I have pervaded?
mustn't you have pervaded?
mustn't he have pervaded?
mustn't we have pervaded?
mustn't you have pervaded?
mustn't they have pervaded? 	mustn't I have been pervading?
mustn't you have been pervading?
mustn't he have been pervading?
mustn't we have been pervading?
mustn't you have been pervading?
mustn't they have been pervading?