English verb conjugation
MUST STULTIFY

Regular verb: stultify - stultified - stultified

Affirmation

Simple form	V-ing form
I must stultify you must stultify he must stultify we must stultify you must stultify they must stultify	I must be stultifying you must be stultifying he must be stultifying we must be stultifying you must be stultifying they must be stultifying
Perfect	V-ing perfect
I must have stultified you must have stultified he must have stultified we must have stultified you must have stultified they must have stultified	I must have been stultifying you must have been stultifying he must have been stultifying we must have been stultifying you must have been stultifying they must have been stultifying

Negation

Simple form	V-ing form
I mustn't stultify you mustn't stultify he mustn't stultify we mustn't stultify you mustn't stultify they mustn't stultify	I mustn't be stultifying you mustn't be stultifying he mustn't be stultifying we mustn't be stultifying you mustn't be stultifying they mustn't be stultifying
Perfect	V-ing perfect
I mustn't have stultified you mustn't have stultified he mustn't have stultified we mustn't have stultified you mustn't have stultified they mustn't have stultified	I mustn't have been stultifying you mustn't have been stultifying he mustn't have been stultifying we mustn't have been stultifying you mustn't have been stultifying they mustn't have been stultifying

Interrogative form

Simple form	V-ing form
must I stultify? must you stultify? must he stultify? must we stultify? must you stultify? must they stultify?	must I be stultifying? must you be stultifying? must he be stultifying? must we be stultifying? must you be stultifying? must they be stultifying?
Perfect	V-ing perfect
must I have stultified? must you have stultified? must he have stultified? must we have stultified? must you have stultified? must they have stultified?	must I have been stultifying? must you have been stultifying? must he have been stultifying? must we have been stultifying? must you have been stultifying? must they have been stultifying?

Interro-negative form

Simple form	V-ing form
mustn't I stultify? mustn't you stultify? mustn't he stultify? mustn't we stultify? mustn't you stultify? mustn't they stultify?	mustn't I be stultifying? mustn't you be stultifying? mustn't he be stultifying? mustn't we be stultifying? mustn't you be stultifying? mustn't they be stultifying?
Perfect	V-ing perfect
mustn't I have stultified? mustn't you have stultified? mustn't he have stultified? mustn't we have stultified? mustn't you have stultified? mustn't they have stultified?	mustn't I have been stultifying? mustn't you have been stultifying? mustn't he have been stultifying? mustn't we have been stultifying? mustn't you have been stultifying? mustn't they have been stultifying?