English verb conjugation
MUST FOG

Regular verb: fog - fogged - fogged

Affirmation

Simple form	V-ing form
I must fog you must fog he must fog we must fog you must fog they must fog	I must be fogging you must be fogging he must be fogging we must be fogging you must be fogging they must be fogging
Perfect	V-ing perfect
I must have fogged you must have fogged he must have fogged we must have fogged you must have fogged they must have fogged	I must have been fogging you must have been fogging he must have been fogging we must have been fogging you must have been fogging they must have been fogging

Negation

Simple form	V-ing form
I mustn't fog you mustn't fog he mustn't fog we mustn't fog you mustn't fog they mustn't fog	I mustn't be fogging you mustn't be fogging he mustn't be fogging we mustn't be fogging you mustn't be fogging they mustn't be fogging
Perfect	V-ing perfect
I mustn't have fogged you mustn't have fogged he mustn't have fogged we mustn't have fogged you mustn't have fogged they mustn't have fogged	I mustn't have been fogging you mustn't have been fogging he mustn't have been fogging we mustn't have been fogging you mustn't have been fogging they mustn't have been fogging

Interrogative form

Simple form	V-ing form
must I fog? must you fog? must he fog? must we fog? must you fog? must they fog?	must I be fogging? must you be fogging? must he be fogging? must we be fogging? must you be fogging? must they be fogging?
Perfect	V-ing perfect
must I have fogged? must you have fogged? must he have fogged? must we have fogged? must you have fogged? must they have fogged?	must I have been fogging? must you have been fogging? must he have been fogging? must we have been fogging? must you have been fogging? must they have been fogging?

Interro-negative form

Simple form	V-ing form
mustn't I fog? mustn't you fog? mustn't he fog? mustn't we fog? mustn't you fog? mustn't they fog?	mustn't I be fogging? mustn't you be fogging? mustn't he be fogging? mustn't we be fogging? mustn't you be fogging? mustn't they be fogging?
Perfect	V-ing perfect
mustn't I have fogged? mustn't you have fogged? mustn't he have fogged? mustn't we have fogged? mustn't you have fogged? mustn't they have fogged?	mustn't I have been fogging? mustn't you have been fogging? mustn't he have been fogging? mustn't we have been fogging? mustn't you have been fogging? mustn't they have been fogging?