English verb conjugation
MUST DOWEL

Regular verb: dowel - dowelled - dowelled

Affirmation

Simple form	V-ing form
I must dowel you must dowel he must dowel we must dowel you must dowel they must dowel	I must be dowelling you must be dowelling he must be dowelling we must be dowelling you must be dowelling they must be dowelling
Perfect	V-ing perfect
I must have dowelled you must have dowelled he must have dowelled we must have dowelled you must have dowelled they must have dowelled	I must have been dowelling you must have been dowelling he must have been dowelling we must have been dowelling you must have been dowelling they must have been dowelling

Negation

Simple form	V-ing form
I mustn't dowel you mustn't dowel he mustn't dowel we mustn't dowel you mustn't dowel they mustn't dowel	I mustn't be dowelling you mustn't be dowelling he mustn't be dowelling we mustn't be dowelling you mustn't be dowelling they mustn't be dowelling
Perfect	V-ing perfect
I mustn't have dowelled you mustn't have dowelled he mustn't have dowelled we mustn't have dowelled you mustn't have dowelled they mustn't have dowelled	I mustn't have been dowelling you mustn't have been dowelling he mustn't have been dowelling we mustn't have been dowelling you mustn't have been dowelling they mustn't have been dowelling

Interrogative form

Simple form	V-ing form
must I dowel? must you dowel? must he dowel? must we dowel? must you dowel? must they dowel?	must I be dowelling? must you be dowelling? must he be dowelling? must we be dowelling? must you be dowelling? must they be dowelling?
Perfect	V-ing perfect
must I have dowelled? must you have dowelled? must he have dowelled? must we have dowelled? must you have dowelled? must they have dowelled?	must I have been dowelling? must you have been dowelling? must he have been dowelling? must we have been dowelling? must you have been dowelling? must they have been dowelling?

Interro-negative form

Simple form	V-ing form
mustn't I dowel? mustn't you dowel? mustn't he dowel? mustn't we dowel? mustn't you dowel? mustn't they dowel?	mustn't I be dowelling? mustn't you be dowelling? mustn't he be dowelling? mustn't we be dowelling? mustn't you be dowelling? mustn't they be dowelling?
Perfect	V-ing perfect
mustn't I have dowelled? mustn't you have dowelled? mustn't he have dowelled? mustn't we have dowelled? mustn't you have dowelled? mustn't they have dowelled?	mustn't I have been dowelling? mustn't you have been dowelling? mustn't he have been dowelling? mustn't we have been dowelling? mustn't you have been dowelling? mustn't they have been dowelling?