could clabber
Verbe régulier : clabber - clabbered- clabbered

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could clabber
you could clabber
she could clabber
we could clabber
you could clabber
they could clabber 	I could be clabbering
you could be clabbering
she could be clabbering
we could be clabbering
you could be clabbering
they could be clabbering	I could have clabbered
you could have clabbered
she could have clabbered
we could have clabbered
you could have clabbered
they could have clabbered	I could have been clabbering
you could have been clabbering
she could have been clabbering
we could have been clabbering
you could have been clabbering
they could have been clabbering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't clabber
you couldn't clabber
she couldn't clabber
we couldn't clabber
you couldn't clabber
they couldn't clabber 	I couldn't be clabbering
you couldn't be clabbering
she couldn't be clabbering
we couldn't be clabbering
you couldn't be clabbering
they couldn't be clabbering	I couldn't have clabbered
you couldn't have clabbered
she couldn't have clabbered
we couldn't have clabbered
you couldn't have clabbered
they couldn't have clabbered	I couldn't have been clabbering
you couldn't have been clabbering
she couldn't have been clabbering
we couldn't have been clabbering
you couldn't have been clabbering
they couldn't have been clabbering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I clabber?
could you clabber?
could she clabber?
could we clabber?
could you clabber?
could they clabber? 	could I be clabbering?
could you be clabbering?
could she be clabbering?
could we be clabbering?
could you be clabbering?
could they be clabbering? 	could I have clabbered?
could you have clabbered?
could she have clabbered?
could we have clabbered?
could you have clabbered?
could they have clabbered? 	could I have been clabbering?
could you have been clabbering?
could she have been clabbering?
could we have been clabbering?
could you have been clabbering?
could they have been clabbering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I clabber?
couldn't you clabber?
couldn't she clabber?
couldn't we clabber?
couldn't you clabber?
couldn't they clabber? 	couldn't I be clabbering?
couldn't you be clabbering?
couldn't she be clabbering?
couldn't we be clabbering?
couldn't you be clabbering?
couldn't they be clabbering? 	couldn't I have clabbered?
couldn't you have clabbered?
couldn't she have clabbered?
couldn't we have clabbered?
couldn't you have clabbered?
couldn't they have clabbered? 	couldn't I have been clabbering?
couldn't you have been clabbering?
couldn't she have been clabbering?
couldn't we have been clabbering?
couldn't you have been clabbering?
couldn't they have been clabbering?