could feather
Verbe régulier : feather - feathered- feathered
Traduction française : empenner - plumer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could feather
you could feather
she could feather
we could feather
you could feather
they could feather 	I could be feathering
you could be feathering
she could be feathering
we could be feathering
you could be feathering
they could be feathering	I could have feathered
you could have feathered
she could have feathered
we could have feathered
you could have feathered
they could have feathered	I could have been feathering
you could have been feathering
she could have been feathering
we could have been feathering
you could have been feathering
they could have been feathering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't feather
you couldn't feather
she couldn't feather
we couldn't feather
you couldn't feather
they couldn't feather 	I couldn't be feathering
you couldn't be feathering
she couldn't be feathering
we couldn't be feathering
you couldn't be feathering
they couldn't be feathering	I couldn't have feathered
you couldn't have feathered
she couldn't have feathered
we couldn't have feathered
you couldn't have feathered
they couldn't have feathered	I couldn't have been feathering
you couldn't have been feathering
she couldn't have been feathering
we couldn't have been feathering
you couldn't have been feathering
they couldn't have been feathering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I feather?
could you feather?
could she feather?
could we feather?
could you feather?
could they feather? 	could I be feathering?
could you be feathering?
could she be feathering?
could we be feathering?
could you be feathering?
could they be feathering? 	could I have feathered?
could you have feathered?
could she have feathered?
could we have feathered?
could you have feathered?
could they have feathered? 	could I have been feathering?
could you have been feathering?
could she have been feathering?
could we have been feathering?
could you have been feathering?
could they have been feathering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I feather?
couldn't you feather?
couldn't she feather?
couldn't we feather?
couldn't you feather?
couldn't they feather? 	couldn't I be feathering?
couldn't you be feathering?
couldn't she be feathering?
couldn't we be feathering?
couldn't you be feathering?
couldn't they be feathering? 	couldn't I have feathered?
couldn't you have feathered?
couldn't she have feathered?
couldn't we have feathered?
couldn't you have feathered?
couldn't they have feathered? 	couldn't I have been feathering?
couldn't you have been feathering?
couldn't she have been feathering?
couldn't we have been feathering?
couldn't you have been feathering?
couldn't they have been feathering?