must counterpetition
Verbe régulier : counterpetition - counterpetitioned- counterpetitioned

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must counterpetition
you must counterpetition
he must counterpetition
we must counterpetition
you must counterpetition
they must counterpetition 	I must be counterpetitioning
you must be counterpetitioning
he must be counterpetitioning
we must be counterpetitioning
you must be counterpetitioning
they must be counterpetitioning	I must have counterpetitioned
you must have counterpetitioned
he must have counterpetitioned
we must have counterpetitioned
you must have counterpetitioned
they must have counterpetitioned	I must have been counterpetitioning
you must have been counterpetitioning
he must have been counterpetitioning
we must have been counterpetitioning
you must have been counterpetitioning
they must have been counterpetitioning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't counterpetition
you mustn't counterpetition
he mustn't counterpetition
we mustn't counterpetition
you mustn't counterpetition
they mustn't counterpetition 	I mustn't be counterpetitioning
you mustn't be counterpetitioning
he mustn't be counterpetitioning
we mustn't be counterpetitioning
you mustn't be counterpetitioning
they mustn't be counterpetitioning	I mustn't have counterpetitioned
you mustn't have counterpetitioned
he mustn't have counterpetitioned
we mustn't have counterpetitioned
you mustn't have counterpetitioned
they mustn't have counterpetitioned	I mustn't have been counterpetitioning
you mustn't have been counterpetitioning
he mustn't have been counterpetitioning
we mustn't have been counterpetitioning
you mustn't have been counterpetitioning
they mustn't have been counterpetitioning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I counterpetition?
must you counterpetition?
must he counterpetition?
must we counterpetition?
must you counterpetition?
must they counterpetition? 	must I be counterpetitioning?
must you be counterpetitioning?
must he be counterpetitioning?
must we be counterpetitioning?
must you be counterpetitioning?
must they be counterpetitioning? 	must I have counterpetitioned?
must you have counterpetitioned?
must he have counterpetitioned?
must we have counterpetitioned?
must you have counterpetitioned?
must they have counterpetitioned? 	must I have been counterpetitioning?
must you have been counterpetitioning?
must he have been counterpetitioning?
must we have been counterpetitioning?
must you have been counterpetitioning?
must they have been counterpetitioning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I counterpetition?
mustn't you counterpetition?
mustn't he counterpetition?
mustn't we counterpetition?
mustn't you counterpetition?
mustn't they counterpetition? 	mustn't I be counterpetitioning?
mustn't you be counterpetitioning?
mustn't he be counterpetitioning?
mustn't we be counterpetitioning?
mustn't you be counterpetitioning?
mustn't they be counterpetitioning? 	mustn't I have counterpetitioned?
mustn't you have counterpetitioned?
mustn't he have counterpetitioned?
mustn't we have counterpetitioned?
mustn't you have counterpetitioned?
mustn't they have counterpetitioned? 	mustn't I have been counterpetitioning?
mustn't you have been counterpetitioning?
mustn't he have been counterpetitioning?
mustn't we have been counterpetitioning?
mustn't you have been counterpetitioning?
mustn't they have been counterpetitioning?