could summer
Verbe régulier : summer - summered- summered
Traduction française : passer l'été - estiver 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could summer
you could summer
she could summer
we could summer
you could summer
they could summer 	I could be summering
you could be summering
she could be summering
we could be summering
you could be summering
they could be summering	I could have summered
you could have summered
she could have summered
we could have summered
you could have summered
they could have summered	I could have been summering
you could have been summering
she could have been summering
we could have been summering
you could have been summering
they could have been summering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't summer
you couldn't summer
she couldn't summer
we couldn't summer
you couldn't summer
they couldn't summer 	I couldn't be summering
you couldn't be summering
she couldn't be summering
we couldn't be summering
you couldn't be summering
they couldn't be summering	I couldn't have summered
you couldn't have summered
she couldn't have summered
we couldn't have summered
you couldn't have summered
they couldn't have summered	I couldn't have been summering
you couldn't have been summering
she couldn't have been summering
we couldn't have been summering
you couldn't have been summering
they couldn't have been summering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I summer?
could you summer?
could she summer?
could we summer?
could you summer?
could they summer? 	could I be summering?
could you be summering?
could she be summering?
could we be summering?
could you be summering?
could they be summering? 	could I have summered?
could you have summered?
could she have summered?
could we have summered?
could you have summered?
could they have summered? 	could I have been summering?
could you have been summering?
could she have been summering?
could we have been summering?
could you have been summering?
could they have been summering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I summer?
couldn't you summer?
couldn't she summer?
couldn't we summer?
couldn't you summer?
couldn't they summer? 	couldn't I be summering?
couldn't you be summering?
couldn't she be summering?
couldn't we be summering?
couldn't you be summering?
couldn't they be summering? 	couldn't I have summered?
couldn't you have summered?
couldn't she have summered?
couldn't we have summered?
couldn't you have summered?
couldn't they have summered? 	couldn't I have been summering?
couldn't you have been summering?
couldn't she have been summering?
couldn't we have been summering?
couldn't you have been summering?
couldn't they have been summering?