must befool
Verbe régulier : befool - befooled- befooled

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must befool
you must befool
she must befool
we must befool
you must befool
they must befool 	I must be befooling
you must be befooling
she must be befooling
we must be befooling
you must be befooling
they must be befooling	I must have befooled
you must have befooled
she must have befooled
we must have befooled
you must have befooled
they must have befooled	I must have been befooling
you must have been befooling
she must have been befooling
we must have been befooling
you must have been befooling
they must have been befooling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't befool
you mustn't befool
she mustn't befool
we mustn't befool
you mustn't befool
they mustn't befool 	I mustn't be befooling
you mustn't be befooling
she mustn't be befooling
we mustn't be befooling
you mustn't be befooling
they mustn't be befooling	I mustn't have befooled
you mustn't have befooled
she mustn't have befooled
we mustn't have befooled
you mustn't have befooled
they mustn't have befooled	I mustn't have been befooling
you mustn't have been befooling
she mustn't have been befooling
we mustn't have been befooling
you mustn't have been befooling
they mustn't have been befooling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I befool?
must you befool?
must she befool?
must we befool?
must you befool?
must they befool? 	must I be befooling?
must you be befooling?
must she be befooling?
must we be befooling?
must you be befooling?
must they be befooling? 	must I have befooled?
must you have befooled?
must she have befooled?
must we have befooled?
must you have befooled?
must they have befooled? 	must I have been befooling?
must you have been befooling?
must she have been befooling?
must we have been befooling?
must you have been befooling?
must they have been befooling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I befool?
mustn't you befool?
mustn't she befool?
mustn't we befool?
mustn't you befool?
mustn't they befool? 	mustn't I be befooling?
mustn't you be befooling?
mustn't she be befooling?
mustn't we be befooling?
mustn't you be befooling?
mustn't they be befooling? 	mustn't I have befooled?
mustn't you have befooled?
mustn't she have befooled?
mustn't we have befooled?
mustn't you have befooled?
mustn't they have befooled? 	mustn't I have been befooling?
mustn't you have been befooling?
mustn't she have been befooling?
mustn't we have been befooling?
mustn't you have been befooling?
mustn't they have been befooling?