must proscribe
Verbo regular: proscribe - proscribed- proscribed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must proscribe
you must proscribe
she must proscribe
we must proscribe
you must proscribe
they must proscribe 	I must be proscribing
you must be proscribing
she must be proscribing
we must be proscribing
you must be proscribing
they must be proscribing	I must have proscribed
you must have proscribed
she must have proscribed
we must have proscribed
you must have proscribed
they must have proscribed	I must have been proscribing
you must have been proscribing
she must have been proscribing
we must have been proscribing
you must have been proscribing
they must have been proscribing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't proscribe
you mustn't proscribe
she mustn't proscribe
we mustn't proscribe
you mustn't proscribe
they mustn't proscribe 	I mustn't be proscribing
you mustn't be proscribing
she mustn't be proscribing
we mustn't be proscribing
you mustn't be proscribing
they mustn't be proscribing	I mustn't have proscribed
you mustn't have proscribed
she mustn't have proscribed
we mustn't have proscribed
you mustn't have proscribed
they mustn't have proscribed	I mustn't have been proscribing
you mustn't have been proscribing
she mustn't have been proscribing
we mustn't have been proscribing
you mustn't have been proscribing
they mustn't have been proscribing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I proscribe?
must you proscribe?
must she proscribe?
must we proscribe?
must you proscribe?
must they proscribe? 	must I be proscribing?
must you be proscribing?
must she be proscribing?
must we be proscribing?
must you be proscribing?
must they be proscribing? 	must I have proscribed?
must you have proscribed?
must she have proscribed?
must we have proscribed?
must you have proscribed?
must they have proscribed? 	must I have been proscribing?
must you have been proscribing?
must she have been proscribing?
must we have been proscribing?
must you have been proscribing?
must they have been proscribing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I proscribe?
mustn't you proscribe?
mustn't she proscribe?
mustn't we proscribe?
mustn't you proscribe?
mustn't they proscribe? 	mustn't I be proscribing?
mustn't you be proscribing?
mustn't she be proscribing?
mustn't we be proscribing?
mustn't you be proscribing?
mustn't they be proscribing? 	mustn't I have proscribed?
mustn't you have proscribed?
mustn't she have proscribed?
mustn't we have proscribed?
mustn't you have proscribed?
mustn't they have proscribed? 	mustn't I have been proscribing?
mustn't you have been proscribing?
mustn't she have been proscribing?
mustn't we have been proscribing?
mustn't you have been proscribing?
mustn't they have been proscribing?