could calender
Verbe régulier : calender - calendered- calendered

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

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

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

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