English verb conjugation
MUST FOG

Regular verb: fog - fogged - fogged

Affirmation

Simple form	V-ing form
I must fog you must fog she must fog we must fog you must fog they must fog	I must be fogging you must be fogging she 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 she 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 she 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 she 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 she 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 she 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 she 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 she fog? must we fog? must you fog? must they fog?	must I be fogging? must you be fogging? must she 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 she 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 she 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 she 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 she 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 she 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 she have been fogging? mustn't we have been fogging? mustn't you have been fogging? mustn't they have been fogging?