must revel
Regular verb: revel - revelled- revelled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must revel
you must revel
he must revel
we must revel
you must revel
they must revel 	I must be revelling
you must be revelling
he must be revelling
we must be revelling
you must be revelling
they must be revelling	I must have revelled
you must have revelled
he must have revelled
we must have revelled
you must have revelled
they must have revelled	I must have been revelling
you must have been revelling
he must have been revelling
we must have been revelling
you must have been revelling
they must have been revelling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't revel
you mustn't revel
he mustn't revel
we mustn't revel
you mustn't revel
they mustn't revel 	I mustn't be revelling
you mustn't be revelling
he mustn't be revelling
we mustn't be revelling
you mustn't be revelling
they mustn't be revelling	I mustn't have revelled
you mustn't have revelled
he mustn't have revelled
we mustn't have revelled
you mustn't have revelled
they mustn't have revelled	I mustn't have been revelling
you mustn't have been revelling
he mustn't have been revelling
we mustn't have been revelling
you mustn't have been revelling
they mustn't have been revelling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I revel?
must you revel?
must he revel?
must we revel?
must you revel?
must they revel? 	must I be revelling?
must you be revelling?
must he be revelling?
must we be revelling?
must you be revelling?
must they be revelling? 	must I have revelled?
must you have revelled?
must he have revelled?
must we have revelled?
must you have revelled?
must they have revelled? 	must I have been revelling?
must you have been revelling?
must he have been revelling?
must we have been revelling?
must you have been revelling?
must they have been revelling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I revel?
mustn't you revel?
mustn't he revel?
mustn't we revel?
mustn't you revel?
mustn't they revel? 	mustn't I be revelling?
mustn't you be revelling?
mustn't he be revelling?
mustn't we be revelling?
mustn't you be revelling?
mustn't they be revelling? 	mustn't I have revelled?
mustn't you have revelled?
mustn't he have revelled?
mustn't we have revelled?
mustn't you have revelled?
mustn't they have revelled? 	mustn't I have been revelling?
mustn't you have been revelling?
mustn't he have been revelling?
mustn't we have been revelling?
mustn't you have been revelling?
mustn't they have been revelling?