must occasion
Verbe régulier : occasion - occasioned- occasioned
Traduction française : occasionner - provoquer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must occasion
you must occasion
he must occasion
we must occasion
you must occasion
they must occasion 	I must be occasioning
you must be occasioning
he must be occasioning
we must be occasioning
you must be occasioning
they must be occasioning	I must have occasioned
you must have occasioned
he must have occasioned
we must have occasioned
you must have occasioned
they must have occasioned	I must have been occasioning
you must have been occasioning
he must have been occasioning
we must have been occasioning
you must have been occasioning
they must have been occasioning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't occasion
you mustn't occasion
he mustn't occasion
we mustn't occasion
you mustn't occasion
they mustn't occasion 	I mustn't be occasioning
you mustn't be occasioning
he mustn't be occasioning
we mustn't be occasioning
you mustn't be occasioning
they mustn't be occasioning	I mustn't have occasioned
you mustn't have occasioned
he mustn't have occasioned
we mustn't have occasioned
you mustn't have occasioned
they mustn't have occasioned	I mustn't have been occasioning
you mustn't have been occasioning
he mustn't have been occasioning
we mustn't have been occasioning
you mustn't have been occasioning
they mustn't have been occasioning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I occasion?
must you occasion?
must he occasion?
must we occasion?
must you occasion?
must they occasion? 	must I be occasioning?
must you be occasioning?
must he be occasioning?
must we be occasioning?
must you be occasioning?
must they be occasioning? 	must I have occasioned?
must you have occasioned?
must he have occasioned?
must we have occasioned?
must you have occasioned?
must they have occasioned? 	must I have been occasioning?
must you have been occasioning?
must he have been occasioning?
must we have been occasioning?
must you have been occasioning?
must they have been occasioning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I occasion?
mustn't you occasion?
mustn't he occasion?
mustn't we occasion?
mustn't you occasion?
mustn't they occasion? 	mustn't I be occasioning?
mustn't you be occasioning?
mustn't he be occasioning?
mustn't we be occasioning?
mustn't you be occasioning?
mustn't they be occasioning? 	mustn't I have occasioned?
mustn't you have occasioned?
mustn't he have occasioned?
mustn't we have occasioned?
mustn't you have occasioned?
mustn't they have occasioned? 	mustn't I have been occasioning?
mustn't you have been occasioning?
mustn't he have been occasioning?
mustn't we have been occasioning?
mustn't you have been occasioning?
mustn't they have been occasioning?