must paper
Verbo regular: paper - papered- papered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must paper
you must paper
he must paper
we must paper
you must paper
they must paper 	I must be papering
you must be papering
he must be papering
we must be papering
you must be papering
they must be papering	I must have papered
you must have papered
he must have papered
we must have papered
you must have papered
they must have papered	I must have been papering
you must have been papering
he must have been papering
we must have been papering
you must have been papering
they must have been papering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't paper
you mustn't paper
he mustn't paper
we mustn't paper
you mustn't paper
they mustn't paper 	I mustn't be papering
you mustn't be papering
he mustn't be papering
we mustn't be papering
you mustn't be papering
they mustn't be papering	I mustn't have papered
you mustn't have papered
he mustn't have papered
we mustn't have papered
you mustn't have papered
they mustn't have papered	I mustn't have been papering
you mustn't have been papering
he mustn't have been papering
we mustn't have been papering
you mustn't have been papering
they mustn't have been papering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I paper?
must you paper?
must he paper?
must we paper?
must you paper?
must they paper? 	must I be papering?
must you be papering?
must he be papering?
must we be papering?
must you be papering?
must they be papering? 	must I have papered?
must you have papered?
must he have papered?
must we have papered?
must you have papered?
must they have papered? 	must I have been papering?
must you have been papering?
must he have been papering?
must we have been papering?
must you have been papering?
must they have been papering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I paper?
mustn't you paper?
mustn't he paper?
mustn't we paper?
mustn't you paper?
mustn't they paper? 	mustn't I be papering?
mustn't you be papering?
mustn't he be papering?
mustn't we be papering?
mustn't you be papering?
mustn't they be papering? 	mustn't I have papered?
mustn't you have papered?
mustn't he have papered?
mustn't we have papered?
mustn't you have papered?
mustn't they have papered? 	mustn't I have been papering?
mustn't you have been papering?
mustn't he have been papering?
mustn't we have been papering?
mustn't you have been papering?
mustn't they have been papering?