must befog
Verbe régulier : befog - befoged- befoged

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must befog
you must befog
she must befog
we must befog
you must befog
they must befog 	I must be befoging
you must be befoging
she must be befoging
we must be befoging
you must be befoging
they must be befoging	I must have befoged
you must have befoged
she must have befoged
we must have befoged
you must have befoged
they must have befoged	I must have been befoging
you must have been befoging
she must have been befoging
we must have been befoging
you must have been befoging
they must have been befoging	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't befog
you mustn't befog
she mustn't befog
we mustn't befog
you mustn't befog
they mustn't befog 	I mustn't be befoging
you mustn't be befoging
she mustn't be befoging
we mustn't be befoging
you mustn't be befoging
they mustn't be befoging	I mustn't have befoged
you mustn't have befoged
she mustn't have befoged
we mustn't have befoged
you mustn't have befoged
they mustn't have befoged	I mustn't have been befoging
you mustn't have been befoging
she mustn't have been befoging
we mustn't have been befoging
you mustn't have been befoging
they mustn't have been befoging	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I befog?
must you befog?
must she befog?
must we befog?
must you befog?
must they befog? 	must I be befoging?
must you be befoging?
must she be befoging?
must we be befoging?
must you be befoging?
must they be befoging? 	must I have befoged?
must you have befoged?
must she have befoged?
must we have befoged?
must you have befoged?
must they have befoged? 	must I have been befoging?
must you have been befoging?
must she have been befoging?
must we have been befoging?
must you have been befoging?
must they have been befoging? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I befog?
mustn't you befog?
mustn't she befog?
mustn't we befog?
mustn't you befog?
mustn't they befog? 	mustn't I be befoging?
mustn't you be befoging?
mustn't she be befoging?
mustn't we be befoging?
mustn't you be befoging?
mustn't they be befoging? 	mustn't I have befoged?
mustn't you have befoged?
mustn't she have befoged?
mustn't we have befoged?
mustn't you have befoged?
mustn't they have befoged? 	mustn't I have been befoging?
mustn't you have been befoging?
mustn't she have been befoging?
mustn't we have been befoging?
mustn't you have been befoging?
mustn't they have been befoging?