must cat
Verbe régulier : cat - cated- cated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must cat
you must cat
he must cat
we must cat
you must cat
they must cat 	I must be cating
you must be cating
he must be cating
we must be cating
you must be cating
they must be cating	I must have cated
you must have cated
he must have cated
we must have cated
you must have cated
they must have cated	I must have been cating
you must have been cating
he must have been cating
we must have been cating
you must have been cating
they must have been cating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't cat
you mustn't cat
he mustn't cat
we mustn't cat
you mustn't cat
they mustn't cat 	I mustn't be cating
you mustn't be cating
he mustn't be cating
we mustn't be cating
you mustn't be cating
they mustn't be cating	I mustn't have cated
you mustn't have cated
he mustn't have cated
we mustn't have cated
you mustn't have cated
they mustn't have cated	I mustn't have been cating
you mustn't have been cating
he mustn't have been cating
we mustn't have been cating
you mustn't have been cating
they mustn't have been cating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I cat?
must you cat?
must he cat?
must we cat?
must you cat?
must they cat? 	must I be cating?
must you be cating?
must he be cating?
must we be cating?
must you be cating?
must they be cating? 	must I have cated?
must you have cated?
must he have cated?
must we have cated?
must you have cated?
must they have cated? 	must I have been cating?
must you have been cating?
must he have been cating?
must we have been cating?
must you have been cating?
must they have been cating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I cat?
mustn't you cat?
mustn't he cat?
mustn't we cat?
mustn't you cat?
mustn't they cat? 	mustn't I be cating?
mustn't you be cating?
mustn't he be cating?
mustn't we be cating?
mustn't you be cating?
mustn't they be cating? 	mustn't I have cated?
mustn't you have cated?
mustn't he have cated?
mustn't we have cated?
mustn't you have cated?
mustn't they have cated? 	mustn't I have been cating?
mustn't you have been cating?
mustn't he have been cating?
mustn't we have been cating?
mustn't you have been cating?
mustn't they have been cating?