must upwell
Regular verb: upwell - upwelled- upwelled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must upwell
you must upwell
she must upwell
we must upwell
you must upwell
they must upwell 	I must be upwelling
you must be upwelling
she must be upwelling
we must be upwelling
you must be upwelling
they must be upwelling	I must have upwelled
you must have upwelled
she must have upwelled
we must have upwelled
you must have upwelled
they must have upwelled	I must have been upwelling
you must have been upwelling
she must have been upwelling
we must have been upwelling
you must have been upwelling
they must have been upwelling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't upwell
you mustn't upwell
she mustn't upwell
we mustn't upwell
you mustn't upwell
they mustn't upwell 	I mustn't be upwelling
you mustn't be upwelling
she mustn't be upwelling
we mustn't be upwelling
you mustn't be upwelling
they mustn't be upwelling	I mustn't have upwelled
you mustn't have upwelled
she mustn't have upwelled
we mustn't have upwelled
you mustn't have upwelled
they mustn't have upwelled	I mustn't have been upwelling
you mustn't have been upwelling
she mustn't have been upwelling
we mustn't have been upwelling
you mustn't have been upwelling
they mustn't have been upwelling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I upwell?
must you upwell?
must she upwell?
must we upwell?
must you upwell?
must they upwell? 	must I be upwelling?
must you be upwelling?
must she be upwelling?
must we be upwelling?
must you be upwelling?
must they be upwelling? 	must I have upwelled?
must you have upwelled?
must she have upwelled?
must we have upwelled?
must you have upwelled?
must they have upwelled? 	must I have been upwelling?
must you have been upwelling?
must she have been upwelling?
must we have been upwelling?
must you have been upwelling?
must they have been upwelling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I upwell?
mustn't you upwell?
mustn't she upwell?
mustn't we upwell?
mustn't you upwell?
mustn't they upwell? 	mustn't I be upwelling?
mustn't you be upwelling?
mustn't she be upwelling?
mustn't we be upwelling?
mustn't you be upwelling?
mustn't they be upwelling? 	mustn't I have upwelled?
mustn't you have upwelled?
mustn't she have upwelled?
mustn't we have upwelled?
mustn't you have upwelled?
mustn't they have upwelled? 	mustn't I have been upwelling?
mustn't you have been upwelling?
mustn't she have been upwelling?
mustn't we have been upwelling?
mustn't you have been upwelling?
mustn't they have been upwelling?