could gasp
Regular verb: gasp - gasped- gasped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could gasp
you could gasp
he could gasp
we could gasp
you could gasp
they could gasp 	I could be gasping
you could be gasping
he could be gasping
we could be gasping
you could be gasping
they could be gasping	I could have gasped
you could have gasped
he could have gasped
we could have gasped
you could have gasped
they could have gasped	I could have been gasping
you could have been gasping
he could have been gasping
we could have been gasping
you could have been gasping
they could have been gasping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't gasp
you couldn't gasp
he couldn't gasp
we couldn't gasp
you couldn't gasp
they couldn't gasp 	I couldn't be gasping
you couldn't be gasping
he couldn't be gasping
we couldn't be gasping
you couldn't be gasping
they couldn't be gasping	I couldn't have gasped
you couldn't have gasped
he couldn't have gasped
we couldn't have gasped
you couldn't have gasped
they couldn't have gasped	I couldn't have been gasping
you couldn't have been gasping
he couldn't have been gasping
we couldn't have been gasping
you couldn't have been gasping
they couldn't have been gasping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I gasp?
could you gasp?
could he gasp?
could we gasp?
could you gasp?
could they gasp? 	could I be gasping?
could you be gasping?
could he be gasping?
could we be gasping?
could you be gasping?
could they be gasping? 	could I have gasped?
could you have gasped?
could he have gasped?
could we have gasped?
could you have gasped?
could they have gasped? 	could I have been gasping?
could you have been gasping?
could he have been gasping?
could we have been gasping?
could you have been gasping?
could they have been gasping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I gasp?
couldn't you gasp?
couldn't he gasp?
couldn't we gasp?
couldn't you gasp?
couldn't they gasp? 	couldn't I be gasping?
couldn't you be gasping?
couldn't he be gasping?
couldn't we be gasping?
couldn't you be gasping?
couldn't they be gasping? 	couldn't I have gasped?
couldn't you have gasped?
couldn't he have gasped?
couldn't we have gasped?
couldn't you have gasped?
couldn't they have gasped? 	couldn't I have been gasping?
couldn't you have been gasping?
couldn't he have been gasping?
couldn't we have been gasping?
couldn't you have been gasping?
couldn't they have been gasping?