could quaver
Verbe régulier : quaver - quavered- quavered
Traduction française : trembloter - parler d'une voix tremblotante ou chevrotante 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could quaver
you could quaver
he could quaver
we could quaver
you could quaver
they could quaver 	I could be quavering
you could be quavering
he could be quavering
we could be quavering
you could be quavering
they could be quavering	I could have quavered
you could have quavered
he could have quavered
we could have quavered
you could have quavered
they could have quavered	I could have been quavering
you could have been quavering
he could have been quavering
we could have been quavering
you could have been quavering
they could have been quavering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't quaver
you couldn't quaver
he couldn't quaver
we couldn't quaver
you couldn't quaver
they couldn't quaver 	I couldn't be quavering
you couldn't be quavering
he couldn't be quavering
we couldn't be quavering
you couldn't be quavering
they couldn't be quavering	I couldn't have quavered
you couldn't have quavered
he couldn't have quavered
we couldn't have quavered
you couldn't have quavered
they couldn't have quavered	I couldn't have been quavering
you couldn't have been quavering
he couldn't have been quavering
we couldn't have been quavering
you couldn't have been quavering
they couldn't have been quavering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I quaver?
could you quaver?
could he quaver?
could we quaver?
could you quaver?
could they quaver? 	could I be quavering?
could you be quavering?
could he be quavering?
could we be quavering?
could you be quavering?
could they be quavering? 	could I have quavered?
could you have quavered?
could he have quavered?
could we have quavered?
could you have quavered?
could they have quavered? 	could I have been quavering?
could you have been quavering?
could he have been quavering?
could we have been quavering?
could you have been quavering?
could they have been quavering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I quaver?
couldn't you quaver?
couldn't he quaver?
couldn't we quaver?
couldn't you quaver?
couldn't they quaver? 	couldn't I be quavering?
couldn't you be quavering?
couldn't he be quavering?
couldn't we be quavering?
couldn't you be quavering?
couldn't they be quavering? 	couldn't I have quavered?
couldn't you have quavered?
couldn't he have quavered?
couldn't we have quavered?
couldn't you have quavered?
couldn't they have quavered? 	couldn't I have been quavering?
couldn't you have been quavering?
couldn't he have been quavering?
couldn't we have been quavering?
couldn't you have been quavering?
couldn't they have been quavering?