must subscribe
Verbo regular: subscribe - subscribed- subscribed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must subscribe
you must subscribe
he must subscribe
we must subscribe
you must subscribe
they must subscribe 	I must be subscribing
you must be subscribing
he must be subscribing
we must be subscribing
you must be subscribing
they must be subscribing	I must have subscribed
you must have subscribed
he must have subscribed
we must have subscribed
you must have subscribed
they must have subscribed	I must have been subscribing
you must have been subscribing
he must have been subscribing
we must have been subscribing
you must have been subscribing
they must have been subscribing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't subscribe
you mustn't subscribe
he mustn't subscribe
we mustn't subscribe
you mustn't subscribe
they mustn't subscribe 	I mustn't be subscribing
you mustn't be subscribing
he mustn't be subscribing
we mustn't be subscribing
you mustn't be subscribing
they mustn't be subscribing	I mustn't have subscribed
you mustn't have subscribed
he mustn't have subscribed
we mustn't have subscribed
you mustn't have subscribed
they mustn't have subscribed	I mustn't have been subscribing
you mustn't have been subscribing
he mustn't have been subscribing
we mustn't have been subscribing
you mustn't have been subscribing
they mustn't have been subscribing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I subscribe?
must you subscribe?
must he subscribe?
must we subscribe?
must you subscribe?
must they subscribe? 	must I be subscribing?
must you be subscribing?
must he be subscribing?
must we be subscribing?
must you be subscribing?
must they be subscribing? 	must I have subscribed?
must you have subscribed?
must he have subscribed?
must we have subscribed?
must you have subscribed?
must they have subscribed? 	must I have been subscribing?
must you have been subscribing?
must he have been subscribing?
must we have been subscribing?
must you have been subscribing?
must they have been subscribing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I subscribe?
mustn't you subscribe?
mustn't he subscribe?
mustn't we subscribe?
mustn't you subscribe?
mustn't they subscribe? 	mustn't I be subscribing?
mustn't you be subscribing?
mustn't he be subscribing?
mustn't we be subscribing?
mustn't you be subscribing?
mustn't they be subscribing? 	mustn't I have subscribed?
mustn't you have subscribed?
mustn't he have subscribed?
mustn't we have subscribed?
mustn't you have subscribed?
mustn't they have subscribed? 	mustn't I have been subscribing?
mustn't you have been subscribing?
mustn't he have been subscribing?
mustn't we have been subscribing?
mustn't you have been subscribing?
mustn't they have been subscribing?