must shrivel
Verbo regular: shrivel - shrivelled- shrivelled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must shrivel
you must shrivel
he must shrivel
we must shrivel
you must shrivel
they must shrivel 	I must be shrivelling
you must be shrivelling
he must be shrivelling
we must be shrivelling
you must be shrivelling
they must be shrivelling	I must have shrivelled
you must have shrivelled
he must have shrivelled
we must have shrivelled
you must have shrivelled
they must have shrivelled	I must have been shrivelling
you must have been shrivelling
he must have been shrivelling
we must have been shrivelling
you must have been shrivelling
they must have been shrivelling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't shrivel
you mustn't shrivel
he mustn't shrivel
we mustn't shrivel
you mustn't shrivel
they mustn't shrivel 	I mustn't be shrivelling
you mustn't be shrivelling
he mustn't be shrivelling
we mustn't be shrivelling
you mustn't be shrivelling
they mustn't be shrivelling	I mustn't have shrivelled
you mustn't have shrivelled
he mustn't have shrivelled
we mustn't have shrivelled
you mustn't have shrivelled
they mustn't have shrivelled	I mustn't have been shrivelling
you mustn't have been shrivelling
he mustn't have been shrivelling
we mustn't have been shrivelling
you mustn't have been shrivelling
they mustn't have been shrivelling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I shrivel?
must you shrivel?
must he shrivel?
must we shrivel?
must you shrivel?
must they shrivel? 	must I be shrivelling?
must you be shrivelling?
must he be shrivelling?
must we be shrivelling?
must you be shrivelling?
must they be shrivelling? 	must I have shrivelled?
must you have shrivelled?
must he have shrivelled?
must we have shrivelled?
must you have shrivelled?
must they have shrivelled? 	must I have been shrivelling?
must you have been shrivelling?
must he have been shrivelling?
must we have been shrivelling?
must you have been shrivelling?
must they have been shrivelling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I shrivel?
mustn't you shrivel?
mustn't he shrivel?
mustn't we shrivel?
mustn't you shrivel?
mustn't they shrivel? 	mustn't I be shrivelling?
mustn't you be shrivelling?
mustn't he be shrivelling?
mustn't we be shrivelling?
mustn't you be shrivelling?
mustn't they be shrivelling? 	mustn't I have shrivelled?
mustn't you have shrivelled?
mustn't he have shrivelled?
mustn't we have shrivelled?
mustn't you have shrivelled?
mustn't they have shrivelled? 	mustn't I have been shrivelling?
mustn't you have been shrivelling?
mustn't he have been shrivelling?
mustn't we have been shrivelling?
mustn't you have been shrivelling?
mustn't they have been shrivelling?