English verb conjugation
MUST UNJAM

Regular verb: unjam - unjamed - unjamed

Affirmation

Simple form	V-ing form
I must unjam you must unjam he must unjam we must unjam you must unjam they must unjam	I must be unjaming you must be unjaming he must be unjaming we must be unjaming you must be unjaming they must be unjaming
Perfect	V-ing perfect
I must have unjamed you must have unjamed he must have unjamed we must have unjamed you must have unjamed they must have unjamed	I must have been unjaming you must have been unjaming he must have been unjaming we must have been unjaming you must have been unjaming they must have been unjaming

Negation

Simple form	V-ing form
I mustn't unjam you mustn't unjam he mustn't unjam we mustn't unjam you mustn't unjam they mustn't unjam	I mustn't be unjaming you mustn't be unjaming he mustn't be unjaming we mustn't be unjaming you mustn't be unjaming they mustn't be unjaming
Perfect	V-ing perfect
I mustn't have unjamed you mustn't have unjamed he mustn't have unjamed we mustn't have unjamed you mustn't have unjamed they mustn't have unjamed	I mustn't have been unjaming you mustn't have been unjaming he mustn't have been unjaming we mustn't have been unjaming you mustn't have been unjaming they mustn't have been unjaming

Interrogative form

Simple form	V-ing form
must I unjam? must you unjam? must he unjam? must we unjam? must you unjam? must they unjam?	must I be unjaming? must you be unjaming? must he be unjaming? must we be unjaming? must you be unjaming? must they be unjaming?
Perfect	V-ing perfect
must I have unjamed? must you have unjamed? must he have unjamed? must we have unjamed? must you have unjamed? must they have unjamed?	must I have been unjaming? must you have been unjaming? must he have been unjaming? must we have been unjaming? must you have been unjaming? must they have been unjaming?

Interro-negative form

Simple form	V-ing form
mustn't I unjam? mustn't you unjam? mustn't he unjam? mustn't we unjam? mustn't you unjam? mustn't they unjam?	mustn't I be unjaming? mustn't you be unjaming? mustn't he be unjaming? mustn't we be unjaming? mustn't you be unjaming? mustn't they be unjaming?
Perfect	V-ing perfect
mustn't I have unjamed? mustn't you have unjamed? mustn't he have unjamed? mustn't we have unjamed? mustn't you have unjamed? mustn't they have unjamed?	mustn't I have been unjaming? mustn't you have been unjaming? mustn't he have been unjaming? mustn't we have been unjaming? mustn't you have been unjaming? mustn't they have been unjaming?