could proffer
Verbe régulier : proffer - proffered- proffered
Traduction française : offrir - émettre 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could proffer
you could proffer
she could proffer
we could proffer
you could proffer
they could proffer 	I could be proffering
you could be proffering
she could be proffering
we could be proffering
you could be proffering
they could be proffering	I could have proffered
you could have proffered
she could have proffered
we could have proffered
you could have proffered
they could have proffered	I could have been proffering
you could have been proffering
she could have been proffering
we could have been proffering
you could have been proffering
they could have been proffering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't proffer
you couldn't proffer
she couldn't proffer
we couldn't proffer
you couldn't proffer
they couldn't proffer 	I couldn't be proffering
you couldn't be proffering
she couldn't be proffering
we couldn't be proffering
you couldn't be proffering
they couldn't be proffering	I couldn't have proffered
you couldn't have proffered
she couldn't have proffered
we couldn't have proffered
you couldn't have proffered
they couldn't have proffered	I couldn't have been proffering
you couldn't have been proffering
she couldn't have been proffering
we couldn't have been proffering
you couldn't have been proffering
they couldn't have been proffering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I proffer?
could you proffer?
could she proffer?
could we proffer?
could you proffer?
could they proffer? 	could I be proffering?
could you be proffering?
could she be proffering?
could we be proffering?
could you be proffering?
could they be proffering? 	could I have proffered?
could you have proffered?
could she have proffered?
could we have proffered?
could you have proffered?
could they have proffered? 	could I have been proffering?
could you have been proffering?
could she have been proffering?
could we have been proffering?
could you have been proffering?
could they have been proffering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I proffer?
couldn't you proffer?
couldn't she proffer?
couldn't we proffer?
couldn't you proffer?
couldn't they proffer? 	couldn't I be proffering?
couldn't you be proffering?
couldn't she be proffering?
couldn't we be proffering?
couldn't you be proffering?
couldn't they be proffering? 	couldn't I have proffered?
couldn't you have proffered?
couldn't she have proffered?
couldn't we have proffered?
couldn't you have proffered?
couldn't they have proffered? 	couldn't I have been proffering?
couldn't you have been proffering?
couldn't she have been proffering?
couldn't we have been proffering?
couldn't you have been proffering?
couldn't they have been proffering?