could keypunch
Verbe régulier : keypunch - keypunched- keypunched

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could keypunch
you could keypunch
he could keypunch
we could keypunch
you could keypunch
they could keypunch 	I could be keypunching
you could be keypunching
he could be keypunching
we could be keypunching
you could be keypunching
they could be keypunching	I could have keypunched
you could have keypunched
he could have keypunched
we could have keypunched
you could have keypunched
they could have keypunched	I could have been keypunching
you could have been keypunching
he could have been keypunching
we could have been keypunching
you could have been keypunching
they could have been keypunching	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't keypunch
you couldn't keypunch
he couldn't keypunch
we couldn't keypunch
you couldn't keypunch
they couldn't keypunch 	I couldn't be keypunching
you couldn't be keypunching
he couldn't be keypunching
we couldn't be keypunching
you couldn't be keypunching
they couldn't be keypunching	I couldn't have keypunched
you couldn't have keypunched
he couldn't have keypunched
we couldn't have keypunched
you couldn't have keypunched
they couldn't have keypunched	I couldn't have been keypunching
you couldn't have been keypunching
he couldn't have been keypunching
we couldn't have been keypunching
you couldn't have been keypunching
they couldn't have been keypunching	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I keypunch?
could you keypunch?
could he keypunch?
could we keypunch?
could you keypunch?
could they keypunch? 	could I be keypunching?
could you be keypunching?
could he be keypunching?
could we be keypunching?
could you be keypunching?
could they be keypunching? 	could I have keypunched?
could you have keypunched?
could he have keypunched?
could we have keypunched?
could you have keypunched?
could they have keypunched? 	could I have been keypunching?
could you have been keypunching?
could he have been keypunching?
could we have been keypunching?
could you have been keypunching?
could they have been keypunching? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I keypunch?
couldn't you keypunch?
couldn't he keypunch?
couldn't we keypunch?
couldn't you keypunch?
couldn't they keypunch? 	couldn't I be keypunching?
couldn't you be keypunching?
couldn't he be keypunching?
couldn't we be keypunching?
couldn't you be keypunching?
couldn't they be keypunching? 	couldn't I have keypunched?
couldn't you have keypunched?
couldn't he have keypunched?
couldn't we have keypunched?
couldn't you have keypunched?
couldn't they have keypunched? 	couldn't I have been keypunching?
couldn't you have been keypunching?
couldn't he have been keypunching?
couldn't we have been keypunching?
couldn't you have been keypunching?
couldn't they have been keypunching?