English verb conjugation
MUST FOAM

Regular verb: foam - foamed - foamed

Affirmation

Simple form	V-ing form
I must foam you must foam he must foam we must foam you must foam they must foam	I must be foaming you must be foaming he must be foaming we must be foaming you must be foaming they must be foaming
Perfect	V-ing perfect
I must have foamed you must have foamed he must have foamed we must have foamed you must have foamed they must have foamed	I must have been foaming you must have been foaming he must have been foaming we must have been foaming you must have been foaming they must have been foaming

Negation

Simple form	V-ing form
I mustn't foam you mustn't foam he mustn't foam we mustn't foam you mustn't foam they mustn't foam	I mustn't be foaming you mustn't be foaming he mustn't be foaming we mustn't be foaming you mustn't be foaming they mustn't be foaming
Perfect	V-ing perfect
I mustn't have foamed you mustn't have foamed he mustn't have foamed we mustn't have foamed you mustn't have foamed they mustn't have foamed	I mustn't have been foaming you mustn't have been foaming he mustn't have been foaming we mustn't have been foaming you mustn't have been foaming they mustn't have been foaming

Interrogative form

Simple form	V-ing form
must I foam? must you foam? must he foam? must we foam? must you foam? must they foam?	must I be foaming? must you be foaming? must he be foaming? must we be foaming? must you be foaming? must they be foaming?
Perfect	V-ing perfect
must I have foamed? must you have foamed? must he have foamed? must we have foamed? must you have foamed? must they have foamed?	must I have been foaming? must you have been foaming? must he have been foaming? must we have been foaming? must you have been foaming? must they have been foaming?

Interro-negative form

Simple form	V-ing form
mustn't I foam? mustn't you foam? mustn't he foam? mustn't we foam? mustn't you foam? mustn't they foam?	mustn't I be foaming? mustn't you be foaming? mustn't he be foaming? mustn't we be foaming? mustn't you be foaming? mustn't they be foaming?
Perfect	V-ing perfect
mustn't I have foamed? mustn't you have foamed? mustn't he have foamed? mustn't we have foamed? mustn't you have foamed? mustn't they have foamed?	mustn't I have been foaming? mustn't you have been foaming? mustn't he have been foaming? mustn't we have been foaming? mustn't you have been foaming? mustn't they have been foaming?