could scaffold
Verbe régulier : scaffold - scaffolded- scaffolded

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could scaffold
you could scaffold
he could scaffold
we could scaffold
you could scaffold
they could scaffold 	I could be scaffolding
you could be scaffolding
he could be scaffolding
we could be scaffolding
you could be scaffolding
they could be scaffolding	I could have scaffolded
you could have scaffolded
he could have scaffolded
we could have scaffolded
you could have scaffolded
they could have scaffolded	I could have been scaffolding
you could have been scaffolding
he could have been scaffolding
we could have been scaffolding
you could have been scaffolding
they could have been scaffolding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't scaffold
you couldn't scaffold
he couldn't scaffold
we couldn't scaffold
you couldn't scaffold
they couldn't scaffold 	I couldn't be scaffolding
you couldn't be scaffolding
he couldn't be scaffolding
we couldn't be scaffolding
you couldn't be scaffolding
they couldn't be scaffolding	I couldn't have scaffolded
you couldn't have scaffolded
he couldn't have scaffolded
we couldn't have scaffolded
you couldn't have scaffolded
they couldn't have scaffolded	I couldn't have been scaffolding
you couldn't have been scaffolding
he couldn't have been scaffolding
we couldn't have been scaffolding
you couldn't have been scaffolding
they couldn't have been scaffolding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I scaffold?
could you scaffold?
could he scaffold?
could we scaffold?
could you scaffold?
could they scaffold? 	could I be scaffolding?
could you be scaffolding?
could he be scaffolding?
could we be scaffolding?
could you be scaffolding?
could they be scaffolding? 	could I have scaffolded?
could you have scaffolded?
could he have scaffolded?
could we have scaffolded?
could you have scaffolded?
could they have scaffolded? 	could I have been scaffolding?
could you have been scaffolding?
could he have been scaffolding?
could we have been scaffolding?
could you have been scaffolding?
could they have been scaffolding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I scaffold?
couldn't you scaffold?
couldn't he scaffold?
couldn't we scaffold?
couldn't you scaffold?
couldn't they scaffold? 	couldn't I be scaffolding?
couldn't you be scaffolding?
couldn't he be scaffolding?
couldn't we be scaffolding?
couldn't you be scaffolding?
couldn't they be scaffolding? 	couldn't I have scaffolded?
couldn't you have scaffolded?
couldn't he have scaffolded?
couldn't we have scaffolded?
couldn't you have scaffolded?
couldn't they have scaffolded? 	couldn't I have been scaffolding?
couldn't you have been scaffolding?
couldn't he have been scaffolding?
couldn't we have been scaffolding?
couldn't you have been scaffolding?
couldn't they have been scaffolding?