English verb conjugation
MUST DEFECT

Regular verb: defect - defected - defected

Affirmation

Simple form	V-ing form
I must defect you must defect he must defect we must defect you must defect they must defect	I must be defecting you must be defecting he must be defecting we must be defecting you must be defecting they must be defecting
Perfect	V-ing perfect
I must have defected you must have defected he must have defected we must have defected you must have defected they must have defected	I must have been defecting you must have been defecting he must have been defecting we must have been defecting you must have been defecting they must have been defecting

Negation

Simple form	V-ing form
I mustn't defect you mustn't defect he mustn't defect we mustn't defect you mustn't defect they mustn't defect	I mustn't be defecting you mustn't be defecting he mustn't be defecting we mustn't be defecting you mustn't be defecting they mustn't be defecting
Perfect	V-ing perfect
I mustn't have defected you mustn't have defected he mustn't have defected we mustn't have defected you mustn't have defected they mustn't have defected	I mustn't have been defecting you mustn't have been defecting he mustn't have been defecting we mustn't have been defecting you mustn't have been defecting they mustn't have been defecting

Interrogative form

Simple form	V-ing form
must I defect? must you defect? must he defect? must we defect? must you defect? must they defect?	must I be defecting? must you be defecting? must he be defecting? must we be defecting? must you be defecting? must they be defecting?
Perfect	V-ing perfect
must I have defected? must you have defected? must he have defected? must we have defected? must you have defected? must they have defected?	must I have been defecting? must you have been defecting? must he have been defecting? must we have been defecting? must you have been defecting? must they have been defecting?

Interro-negative form

Simple form	V-ing form
mustn't I defect? mustn't you defect? mustn't he defect? mustn't we defect? mustn't you defect? mustn't they defect?	mustn't I be defecting? mustn't you be defecting? mustn't he be defecting? mustn't we be defecting? mustn't you be defecting? mustn't they be defecting?
Perfect	V-ing perfect
mustn't I have defected? mustn't you have defected? mustn't he have defected? mustn't we have defected? mustn't you have defected? mustn't they have defected?	mustn't I have been defecting? mustn't you have been defecting? mustn't he have been defecting? mustn't we have been defecting? mustn't you have been defecting? mustn't they have been defecting?