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 must not upwell
you must not upwell
she must not upwell
we must not upwell
you must not upwell
they must not upwell 	I must not be upwelling
you must not be upwelling
she must not be upwelling
we must not be upwelling
you must not be upwelling
they must not be upwelling	I must not have upwelled
you must not have upwelled
she must not have upwelled
we must not have upwelled
you must not have upwelled
they must not have upwelled	I must not have been upwelling
you must not have been upwelling
she must not have been upwelling
we must not have been upwelling
you must not have been upwelling
they must not 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 	
must I not upwell?
must you not upwell?
must she not upwell?
must we not upwell?
must you not upwell?
must they not upwell? 	must I not be upwelling?
must you not be upwelling?
must she not be upwelling?
must we not be upwelling?
must you not be upwelling?
must they not be upwelling? 	must I not have upwelled?
must you not have upwelled?
must she not have upwelled?
must we not have upwelled?
must you not have upwelled?
must they not have upwelled? 	must I not have been upwelling?
must you not have been upwelling?
must she not have been upwelling?
must we not have been upwelling?
must you not have been upwelling?
must they not have been upwelling?