can scaffold
Regular verb: scaffold - scaffolded- scaffolded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can scaffold
you can scaffold
he can scaffold
we can scaffold
you can scaffold
they can scaffold 	I can be scaffolding
you can be scaffolding
he can be scaffolding
we can be scaffolding
you can be scaffolding
they can be scaffolding	I can have scaffolded
you can have scaffolded
he can have scaffolded
we can have scaffolded
you can have scaffolded
they can have scaffolded	I can have been scaffolding
you can have been scaffolding
he can have been scaffolding
we can have been scaffolding
you can have been scaffolding
they can have been scaffolding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't scaffold
you can't scaffold
he can't scaffold
we can't scaffold
you can't scaffold
they can't scaffold 	I can't be scaffolding
you can't be scaffolding
he can't be scaffolding
we can't be scaffolding
you can't be scaffolding
they can't be scaffolding	I can't have scaffolded
you can't have scaffolded
he can't have scaffolded
we can't have scaffolded
you can't have scaffolded
they can't have scaffolded	I can't have been scaffolding
you can't have been scaffolding
he can't have been scaffolding
we can't have been scaffolding
you can't have been scaffolding
they can't have been scaffolding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I scaffold?
can you scaffold?
can he scaffold?
can we scaffold?
can you scaffold?
can they scaffold? 	can I be scaffolding?
can you be scaffolding?
can he be scaffolding?
can we be scaffolding?
can you be scaffolding?
can they be scaffolding? 	can I have scaffolded?
can you have scaffolded?
can he have scaffolded?
can we have scaffolded?
can you have scaffolded?
can they have scaffolded? 	can I have been scaffolding?
can you have been scaffolding?
can he have been scaffolding?
can we have been scaffolding?
can you have been scaffolding?
can they have been scaffolding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I scaffold?
can't you scaffold?
can't he scaffold?
can't we scaffold?
can't you scaffold?
can't they scaffold? 	can't I be scaffolding?
can't you be scaffolding?
can't he be scaffolding?
can't we be scaffolding?
can't you be scaffolding?
can't they be scaffolding? 	can't I have scaffolded?
can't you have scaffolded?
can't he have scaffolded?
can't we have scaffolded?
can't you have scaffolded?
can't they have scaffolded? 	can't I have been scaffolding?
can't you have been scaffolding?
can't he have been scaffolding?
can't we have been scaffolding?
can't you have been scaffolding?
can't they have been scaffolding?