could gallop
Regular verb: gallop - galloped- galloped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could gallop
you could gallop
he could gallop
we could gallop
you could gallop
they could gallop 	I could be galloping
you could be galloping
he could be galloping
we could be galloping
you could be galloping
they could be galloping	I could have galloped
you could have galloped
he could have galloped
we could have galloped
you could have galloped
they could have galloped	I could have been galloping
you could have been galloping
he could have been galloping
we could have been galloping
you could have been galloping
they could have been galloping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't gallop
you couldn't gallop
he couldn't gallop
we couldn't gallop
you couldn't gallop
they couldn't gallop 	I couldn't be galloping
you couldn't be galloping
he couldn't be galloping
we couldn't be galloping
you couldn't be galloping
they couldn't be galloping	I couldn't have galloped
you couldn't have galloped
he couldn't have galloped
we couldn't have galloped
you couldn't have galloped
they couldn't have galloped	I couldn't have been galloping
you couldn't have been galloping
he couldn't have been galloping
we couldn't have been galloping
you couldn't have been galloping
they couldn't have been galloping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I gallop?
could you gallop?
could he gallop?
could we gallop?
could you gallop?
could they gallop? 	could I be galloping?
could you be galloping?
could he be galloping?
could we be galloping?
could you be galloping?
could they be galloping? 	could I have galloped?
could you have galloped?
could he have galloped?
could we have galloped?
could you have galloped?
could they have galloped? 	could I have been galloping?
could you have been galloping?
could he have been galloping?
could we have been galloping?
could you have been galloping?
could they have been galloping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I gallop?
couldn't you gallop?
couldn't he gallop?
couldn't we gallop?
couldn't you gallop?
couldn't they gallop? 	couldn't I be galloping?
couldn't you be galloping?
couldn't he be galloping?
couldn't we be galloping?
couldn't you be galloping?
couldn't they be galloping? 	couldn't I have galloped?
couldn't you have galloped?
couldn't he have galloped?
couldn't we have galloped?
couldn't you have galloped?
couldn't they have galloped? 	couldn't I have been galloping?
couldn't you have been galloping?
couldn't he have been galloping?
couldn't we have been galloping?
couldn't you have been galloping?
couldn't they have been galloping?