must pervert
Verbo regular: pervert - perverted- perverted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must pervert
you must pervert
he must pervert
we must pervert
you must pervert
they must pervert 	I must be perverting
you must be perverting
he must be perverting
we must be perverting
you must be perverting
they must be perverting	I must have perverted
you must have perverted
he must have perverted
we must have perverted
you must have perverted
they must have perverted	I must have been perverting
you must have been perverting
he must have been perverting
we must have been perverting
you must have been perverting
they must have been perverting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't pervert
you mustn't pervert
he mustn't pervert
we mustn't pervert
you mustn't pervert
they mustn't pervert 	I mustn't be perverting
you mustn't be perverting
he mustn't be perverting
we mustn't be perverting
you mustn't be perverting
they mustn't be perverting	I mustn't have perverted
you mustn't have perverted
he mustn't have perverted
we mustn't have perverted
you mustn't have perverted
they mustn't have perverted	I mustn't have been perverting
you mustn't have been perverting
he mustn't have been perverting
we mustn't have been perverting
you mustn't have been perverting
they mustn't have been perverting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I pervert?
must you pervert?
must he pervert?
must we pervert?
must you pervert?
must they pervert? 	must I be perverting?
must you be perverting?
must he be perverting?
must we be perverting?
must you be perverting?
must they be perverting? 	must I have perverted?
must you have perverted?
must he have perverted?
must we have perverted?
must you have perverted?
must they have perverted? 	must I have been perverting?
must you have been perverting?
must he have been perverting?
must we have been perverting?
must you have been perverting?
must they have been perverting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I pervert?
mustn't you pervert?
mustn't he pervert?
mustn't we pervert?
mustn't you pervert?
mustn't they pervert? 	mustn't I be perverting?
mustn't you be perverting?
mustn't he be perverting?
mustn't we be perverting?
mustn't you be perverting?
mustn't they be perverting? 	mustn't I have perverted?
mustn't you have perverted?
mustn't he have perverted?
mustn't we have perverted?
mustn't you have perverted?
mustn't they have perverted? 	mustn't I have been perverting?
mustn't you have been perverting?
mustn't he have been perverting?
mustn't we have been perverting?
mustn't you have been perverting?
mustn't they have been perverting?