must calender
Verbe régulier : calender - calendered- calendered

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must calender
you must calender
she must calender
we must calender
you must calender
they must calender 	I must be calendering
you must be calendering
she must be calendering
we must be calendering
you must be calendering
they must be calendering	I must have calendered
you must have calendered
she must have calendered
we must have calendered
you must have calendered
they must have calendered	I must have been calendering
you must have been calendering
she must have been calendering
we must have been calendering
you must have been calendering
they must have been calendering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't calender
you mustn't calender
she mustn't calender
we mustn't calender
you mustn't calender
they mustn't calender 	I mustn't be calendering
you mustn't be calendering
she mustn't be calendering
we mustn't be calendering
you mustn't be calendering
they mustn't be calendering	I mustn't have calendered
you mustn't have calendered
she mustn't have calendered
we mustn't have calendered
you mustn't have calendered
they mustn't have calendered	I mustn't have been calendering
you mustn't have been calendering
she mustn't have been calendering
we mustn't have been calendering
you mustn't have been calendering
they mustn't have been calendering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I calender?
must you calender?
must she calender?
must we calender?
must you calender?
must they calender? 	must I be calendering?
must you be calendering?
must she be calendering?
must we be calendering?
must you be calendering?
must they be calendering? 	must I have calendered?
must you have calendered?
must she have calendered?
must we have calendered?
must you have calendered?
must they have calendered? 	must I have been calendering?
must you have been calendering?
must she have been calendering?
must we have been calendering?
must you have been calendering?
must they have been calendering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I calender?
mustn't you calender?
mustn't she calender?
mustn't we calender?
mustn't you calender?
mustn't they calender? 	mustn't I be calendering?
mustn't you be calendering?
mustn't she be calendering?
mustn't we be calendering?
mustn't you be calendering?
mustn't they be calendering? 	mustn't I have calendered?
mustn't you have calendered?
mustn't she have calendered?
mustn't we have calendered?
mustn't you have calendered?
mustn't they have calendered? 	mustn't I have been calendering?
mustn't you have been calendering?
mustn't she have been calendering?
mustn't we have been calendering?
mustn't you have been calendering?
mustn't they have been calendering?