could polygraph
Verbe régulier : polygraph - polygraphed- polygraphed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could polygraph
you could polygraph
he could polygraph
we could polygraph
you could polygraph
they could polygraph 	I could be polygraphing
you could be polygraphing
he could be polygraphing
we could be polygraphing
you could be polygraphing
they could be polygraphing	I could have polygraphed
you could have polygraphed
he could have polygraphed
we could have polygraphed
you could have polygraphed
they could have polygraphed	I could have been polygraphing
you could have been polygraphing
he could have been polygraphing
we could have been polygraphing
you could have been polygraphing
they could have been polygraphing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't polygraph
you couldn't polygraph
he couldn't polygraph
we couldn't polygraph
you couldn't polygraph
they couldn't polygraph 	I couldn't be polygraphing
you couldn't be polygraphing
he couldn't be polygraphing
we couldn't be polygraphing
you couldn't be polygraphing
they couldn't be polygraphing	I couldn't have polygraphed
you couldn't have polygraphed
he couldn't have polygraphed
we couldn't have polygraphed
you couldn't have polygraphed
they couldn't have polygraphed	I couldn't have been polygraphing
you couldn't have been polygraphing
he couldn't have been polygraphing
we couldn't have been polygraphing
you couldn't have been polygraphing
they couldn't have been polygraphing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I polygraph?
could you polygraph?
could he polygraph?
could we polygraph?
could you polygraph?
could they polygraph? 	could I be polygraphing?
could you be polygraphing?
could he be polygraphing?
could we be polygraphing?
could you be polygraphing?
could they be polygraphing? 	could I have polygraphed?
could you have polygraphed?
could he have polygraphed?
could we have polygraphed?
could you have polygraphed?
could they have polygraphed? 	could I have been polygraphing?
could you have been polygraphing?
could he have been polygraphing?
could we have been polygraphing?
could you have been polygraphing?
could they have been polygraphing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I polygraph?
couldn't you polygraph?
couldn't he polygraph?
couldn't we polygraph?
couldn't you polygraph?
couldn't they polygraph? 	couldn't I be polygraphing?
couldn't you be polygraphing?
couldn't he be polygraphing?
couldn't we be polygraphing?
couldn't you be polygraphing?
couldn't they be polygraphing? 	couldn't I have polygraphed?
couldn't you have polygraphed?
couldn't he have polygraphed?
couldn't we have polygraphed?
couldn't you have polygraphed?
couldn't they have polygraphed? 	couldn't I have been polygraphing?
couldn't you have been polygraphing?
couldn't he have been polygraphing?
couldn't we have been polygraphing?
couldn't you have been polygraphing?
couldn't they have been polygraphing?