must unravel
Verbo regular: unravel - unravelled- unravelled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must unravel
you must unravel
he must unravel
we must unravel
you must unravel
they must unravel 	I must be unravelling
you must be unravelling
he must be unravelling
we must be unravelling
you must be unravelling
they must be unravelling	I must have unravelled
you must have unravelled
he must have unravelled
we must have unravelled
you must have unravelled
they must have unravelled	I must have been unravelling
you must have been unravelling
he must have been unravelling
we must have been unravelling
you must have been unravelling
they must have been unravelling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't unravel
you mustn't unravel
he mustn't unravel
we mustn't unravel
you mustn't unravel
they mustn't unravel 	I mustn't be unravelling
you mustn't be unravelling
he mustn't be unravelling
we mustn't be unravelling
you mustn't be unravelling
they mustn't be unravelling	I mustn't have unravelled
you mustn't have unravelled
he mustn't have unravelled
we mustn't have unravelled
you mustn't have unravelled
they mustn't have unravelled	I mustn't have been unravelling
you mustn't have been unravelling
he mustn't have been unravelling
we mustn't have been unravelling
you mustn't have been unravelling
they mustn't have been unravelling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I unravel?
must you unravel?
must he unravel?
must we unravel?
must you unravel?
must they unravel? 	must I be unravelling?
must you be unravelling?
must he be unravelling?
must we be unravelling?
must you be unravelling?
must they be unravelling? 	must I have unravelled?
must you have unravelled?
must he have unravelled?
must we have unravelled?
must you have unravelled?
must they have unravelled? 	must I have been unravelling?
must you have been unravelling?
must he have been unravelling?
must we have been unravelling?
must you have been unravelling?
must they have been unravelling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I unravel?
mustn't you unravel?
mustn't he unravel?
mustn't we unravel?
mustn't you unravel?
mustn't they unravel? 	mustn't I be unravelling?
mustn't you be unravelling?
mustn't he be unravelling?
mustn't we be unravelling?
mustn't you be unravelling?
mustn't they be unravelling? 	mustn't I have unravelled?
mustn't you have unravelled?
mustn't he have unravelled?
mustn't we have unravelled?
mustn't you have unravelled?
mustn't they have unravelled? 	mustn't I have been unravelling?
mustn't you have been unravelling?
mustn't he have been unravelling?
mustn't we have been unravelling?
mustn't you have been unravelling?
mustn't they have been unravelling?