could lumber
Verbe régulier : lumber - lumbered- lumbered
Traduction française : (US) débiter - marcher pesamment 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could lumber
you could lumber
he could lumber
we could lumber
you could lumber
they could lumber 	I could be lumbering
you could be lumbering
he could be lumbering
we could be lumbering
you could be lumbering
they could be lumbering	I could have lumbered
you could have lumbered
he could have lumbered
we could have lumbered
you could have lumbered
they could have lumbered	I could have been lumbering
you could have been lumbering
he could have been lumbering
we could have been lumbering
you could have been lumbering
they could have been lumbering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not lumber
you could not lumber
he could not lumber
we could not lumber
you could not lumber
they could not lumber 	I could not be lumbering
you could not be lumbering
he could not be lumbering
we could not be lumbering
you could not be lumbering
they could not be lumbering	I could not have lumbered
you could not have lumbered
he could not have lumbered
we could not have lumbered
you could not have lumbered
they could not have lumbered	I could not have been lumbering
you could not have been lumbering
he could not have been lumbering
we could not have been lumbering
you could not have been lumbering
they could not have been lumbering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I lumber?
could you lumber?
could he lumber?
could we lumber?
could you lumber?
could they lumber? 	could I be lumbering?
could you be lumbering?
could he be lumbering?
could we be lumbering?
could you be lumbering?
could they be lumbering? 	could I have lumbered?
could you have lumbered?
could he have lumbered?
could we have lumbered?
could you have lumbered?
could they have lumbered? 	could I have been lumbering?
could you have been lumbering?
could he have been lumbering?
could we have been lumbering?
could you have been lumbering?
could they have been lumbering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not lumber?
could you not lumber?
could he not lumber?
could we not lumber?
could you not lumber?
could they not lumber? 	could I not be lumbering?
could you not be lumbering?
could he not be lumbering?
could we not be lumbering?
could you not be lumbering?
could they not be lumbering? 	could I not have lumbered?
could you not have lumbered?
could he not have lumbered?
could we not have lumbered?
could you not have lumbered?
could they not have lumbered? 	could I not have been lumbering?
could you not have been lumbering?
could he not have been lumbering?
could we not have been lumbering?
could you not have been lumbering?
could they not have been lumbering?