could plump
Regular verb: plump - plumped- plumped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could plump
you could plump
she could plump
we could plump
you could plump
they could plump 	I could be plumping
you could be plumping
she could be plumping
we could be plumping
you could be plumping
they could be plumping	I could have plumped
you could have plumped
she could have plumped
we could have plumped
you could have plumped
they could have plumped	I could have been plumping
you could have been plumping
she could have been plumping
we could have been plumping
you could have been plumping
they could have been plumping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't plump
you couldn't plump
she couldn't plump
we couldn't plump
you couldn't plump
they couldn't plump 	I couldn't be plumping
you couldn't be plumping
she couldn't be plumping
we couldn't be plumping
you couldn't be plumping
they couldn't be plumping	I couldn't have plumped
you couldn't have plumped
she couldn't have plumped
we couldn't have plumped
you couldn't have plumped
they couldn't have plumped	I couldn't have been plumping
you couldn't have been plumping
she couldn't have been plumping
we couldn't have been plumping
you couldn't have been plumping
they couldn't have been plumping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I plump?
could you plump?
could she plump?
could we plump?
could you plump?
could they plump? 	could I be plumping?
could you be plumping?
could she be plumping?
could we be plumping?
could you be plumping?
could they be plumping? 	could I have plumped?
could you have plumped?
could she have plumped?
could we have plumped?
could you have plumped?
could they have plumped? 	could I have been plumping?
could you have been plumping?
could she have been plumping?
could we have been plumping?
could you have been plumping?
could they have been plumping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I plump?
couldn't you plump?
couldn't she plump?
couldn't we plump?
couldn't you plump?
couldn't they plump? 	couldn't I be plumping?
couldn't you be plumping?
couldn't she be plumping?
couldn't we be plumping?
couldn't you be plumping?
couldn't they be plumping? 	couldn't I have plumped?
couldn't you have plumped?
couldn't she have plumped?
couldn't we have plumped?
couldn't you have plumped?
couldn't they have plumped? 	couldn't I have been plumping?
couldn't you have been plumping?
couldn't she have been plumping?
couldn't we have been plumping?
couldn't you have been plumping?
couldn't they have been plumping?