English verb conjugation
MUST MULLION

Regular verb: mullion - mullioned - mullioned

Affirmation

Simple form	V-ing form
I must mullion you must mullion he must mullion we must mullion you must mullion they must mullion	I must be mullioning you must be mullioning he must be mullioning we must be mullioning you must be mullioning they must be mullioning
Perfect	V-ing perfect
I must have mullioned you must have mullioned he must have mullioned we must have mullioned you must have mullioned they must have mullioned	I must have been mullioning you must have been mullioning he must have been mullioning we must have been mullioning you must have been mullioning they must have been mullioning

Negation

Simple form	V-ing form
I mustn't mullion you mustn't mullion he mustn't mullion we mustn't mullion you mustn't mullion they mustn't mullion	I mustn't be mullioning you mustn't be mullioning he mustn't be mullioning we mustn't be mullioning you mustn't be mullioning they mustn't be mullioning
Perfect	V-ing perfect
I mustn't have mullioned you mustn't have mullioned he mustn't have mullioned we mustn't have mullioned you mustn't have mullioned they mustn't have mullioned	I mustn't have been mullioning you mustn't have been mullioning he mustn't have been mullioning we mustn't have been mullioning you mustn't have been mullioning they mustn't have been mullioning

Interrogative form

Simple form	V-ing form
must I mullion? must you mullion? must he mullion? must we mullion? must you mullion? must they mullion?	must I be mullioning? must you be mullioning? must he be mullioning? must we be mullioning? must you be mullioning? must they be mullioning?
Perfect	V-ing perfect
must I have mullioned? must you have mullioned? must he have mullioned? must we have mullioned? must you have mullioned? must they have mullioned?	must I have been mullioning? must you have been mullioning? must he have been mullioning? must we have been mullioning? must you have been mullioning? must they have been mullioning?

Interro-negative form

Simple form	V-ing form
mustn't I mullion? mustn't you mullion? mustn't he mullion? mustn't we mullion? mustn't you mullion? mustn't they mullion?	mustn't I be mullioning? mustn't you be mullioning? mustn't he be mullioning? mustn't we be mullioning? mustn't you be mullioning? mustn't they be mullioning?
Perfect	V-ing perfect
mustn't I have mullioned? mustn't you have mullioned? mustn't he have mullioned? mustn't we have mullioned? mustn't you have mullioned? mustn't they have mullioned?	mustn't I have been mullioning? mustn't you have been mullioning? mustn't he have been mullioning? mustn't we have been mullioning? mustn't you have been mullioning? mustn't they have been mullioning?