must kitten
Verbe régulier : kitten - kittened- kittened

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must kitten
you must kitten
he must kitten
we must kitten
you must kitten
they must kitten 	I must be kittening
you must be kittening
he must be kittening
we must be kittening
you must be kittening
they must be kittening	I must have kittened
you must have kittened
he must have kittened
we must have kittened
you must have kittened
they must have kittened	I must have been kittening
you must have been kittening
he must have been kittening
we must have been kittening
you must have been kittening
they must have been kittening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't kitten
you mustn't kitten
he mustn't kitten
we mustn't kitten
you mustn't kitten
they mustn't kitten 	I mustn't be kittening
you mustn't be kittening
he mustn't be kittening
we mustn't be kittening
you mustn't be kittening
they mustn't be kittening	I mustn't have kittened
you mustn't have kittened
he mustn't have kittened
we mustn't have kittened
you mustn't have kittened
they mustn't have kittened	I mustn't have been kittening
you mustn't have been kittening
he mustn't have been kittening
we mustn't have been kittening
you mustn't have been kittening
they mustn't have been kittening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I kitten?
must you kitten?
must he kitten?
must we kitten?
must you kitten?
must they kitten? 	must I be kittening?
must you be kittening?
must he be kittening?
must we be kittening?
must you be kittening?
must they be kittening? 	must I have kittened?
must you have kittened?
must he have kittened?
must we have kittened?
must you have kittened?
must they have kittened? 	must I have been kittening?
must you have been kittening?
must he have been kittening?
must we have been kittening?
must you have been kittening?
must they have been kittening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I kitten?
mustn't you kitten?
mustn't he kitten?
mustn't we kitten?
mustn't you kitten?
mustn't they kitten? 	mustn't I be kittening?
mustn't you be kittening?
mustn't he be kittening?
mustn't we be kittening?
mustn't you be kittening?
mustn't they be kittening? 	mustn't I have kittened?
mustn't you have kittened?
mustn't he have kittened?
mustn't we have kittened?
mustn't you have kittened?
mustn't they have kittened? 	mustn't I have been kittening?
mustn't you have been kittening?
mustn't he have been kittening?
mustn't we have been kittening?
mustn't you have been kittening?
mustn't they have been kittening?