could volunteer
Verbe régulier : volunteer - volunteered- volunteered
Traduction française : donner ou fournir spontanément - se porter volontaire 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could volunteer
you could volunteer
she could volunteer
we could volunteer
you could volunteer
they could volunteer 	I could be volunteering
you could be volunteering
she could be volunteering
we could be volunteering
you could be volunteering
they could be volunteering	I could have volunteered
you could have volunteered
she could have volunteered
we could have volunteered
you could have volunteered
they could have volunteered	I could have been volunteering
you could have been volunteering
she could have been volunteering
we could have been volunteering
you could have been volunteering
they could have been volunteering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't volunteer
you couldn't volunteer
she couldn't volunteer
we couldn't volunteer
you couldn't volunteer
they couldn't volunteer 	I couldn't be volunteering
you couldn't be volunteering
she couldn't be volunteering
we couldn't be volunteering
you couldn't be volunteering
they couldn't be volunteering	I couldn't have volunteered
you couldn't have volunteered
she couldn't have volunteered
we couldn't have volunteered
you couldn't have volunteered
they couldn't have volunteered	I couldn't have been volunteering
you couldn't have been volunteering
she couldn't have been volunteering
we couldn't have been volunteering
you couldn't have been volunteering
they couldn't have been volunteering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I volunteer?
could you volunteer?
could she volunteer?
could we volunteer?
could you volunteer?
could they volunteer? 	could I be volunteering?
could you be volunteering?
could she be volunteering?
could we be volunteering?
could you be volunteering?
could they be volunteering? 	could I have volunteered?
could you have volunteered?
could she have volunteered?
could we have volunteered?
could you have volunteered?
could they have volunteered? 	could I have been volunteering?
could you have been volunteering?
could she have been volunteering?
could we have been volunteering?
could you have been volunteering?
could they have been volunteering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I volunteer?
couldn't you volunteer?
couldn't she volunteer?
couldn't we volunteer?
couldn't you volunteer?
couldn't they volunteer? 	couldn't I be volunteering?
couldn't you be volunteering?
couldn't she be volunteering?
couldn't we be volunteering?
couldn't you be volunteering?
couldn't they be volunteering? 	couldn't I have volunteered?
couldn't you have volunteered?
couldn't she have volunteered?
couldn't we have volunteered?
couldn't you have volunteered?
couldn't they have volunteered? 	couldn't I have been volunteering?
couldn't you have been volunteering?
couldn't she have been volunteering?
couldn't we have been volunteering?
couldn't you have been volunteering?
couldn't they have been volunteering?