must guggle
Verbe régulier : guggle - guggled- guggled

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must guggle
you must guggle
she must guggle
we must guggle
you must guggle
they must guggle 	I must be guggling
you must be guggling
she must be guggling
we must be guggling
you must be guggling
they must be guggling	I must have guggled
you must have guggled
she must have guggled
we must have guggled
you must have guggled
they must have guggled	I must have been guggling
you must have been guggling
she must have been guggling
we must have been guggling
you must have been guggling
they must have been guggling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't guggle
you mustn't guggle
she mustn't guggle
we mustn't guggle
you mustn't guggle
they mustn't guggle 	I mustn't be guggling
you mustn't be guggling
she mustn't be guggling
we mustn't be guggling
you mustn't be guggling
they mustn't be guggling	I mustn't have guggled
you mustn't have guggled
she mustn't have guggled
we mustn't have guggled
you mustn't have guggled
they mustn't have guggled	I mustn't have been guggling
you mustn't have been guggling
she mustn't have been guggling
we mustn't have been guggling
you mustn't have been guggling
they mustn't have been guggling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I guggle?
must you guggle?
must she guggle?
must we guggle?
must you guggle?
must they guggle? 	must I be guggling?
must you be guggling?
must she be guggling?
must we be guggling?
must you be guggling?
must they be guggling? 	must I have guggled?
must you have guggled?
must she have guggled?
must we have guggled?
must you have guggled?
must they have guggled? 	must I have been guggling?
must you have been guggling?
must she have been guggling?
must we have been guggling?
must you have been guggling?
must they have been guggling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I guggle?
mustn't you guggle?
mustn't she guggle?
mustn't we guggle?
mustn't you guggle?
mustn't they guggle? 	mustn't I be guggling?
mustn't you be guggling?
mustn't she be guggling?
mustn't we be guggling?
mustn't you be guggling?
mustn't they be guggling? 	mustn't I have guggled?
mustn't you have guggled?
mustn't she have guggled?
mustn't we have guggled?
mustn't you have guggled?
mustn't they have guggled? 	mustn't I have been guggling?
mustn't you have been guggling?
mustn't she have been guggling?
mustn't we have been guggling?
mustn't you have been guggling?
mustn't they have been guggling?