could outclimb
Regular verb: outclimb - outclimbed- outclimbed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could outclimb
you could outclimb
he could outclimb
we could outclimb
you could outclimb
they could outclimb 	I could be outclimbing
you could be outclimbing
he could be outclimbing
we could be outclimbing
you could be outclimbing
they could be outclimbing	I could have outclimbed
you could have outclimbed
he could have outclimbed
we could have outclimbed
you could have outclimbed
they could have outclimbed	I could have been outclimbing
you could have been outclimbing
he could have been outclimbing
we could have been outclimbing
you could have been outclimbing
they could have been outclimbing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't outclimb
you couldn't outclimb
he couldn't outclimb
we couldn't outclimb
you couldn't outclimb
they couldn't outclimb 	I couldn't be outclimbing
you couldn't be outclimbing
he couldn't be outclimbing
we couldn't be outclimbing
you couldn't be outclimbing
they couldn't be outclimbing	I couldn't have outclimbed
you couldn't have outclimbed
he couldn't have outclimbed
we couldn't have outclimbed
you couldn't have outclimbed
they couldn't have outclimbed	I couldn't have been outclimbing
you couldn't have been outclimbing
he couldn't have been outclimbing
we couldn't have been outclimbing
you couldn't have been outclimbing
they couldn't have been outclimbing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I outclimb?
could you outclimb?
could he outclimb?
could we outclimb?
could you outclimb?
could they outclimb? 	could I be outclimbing?
could you be outclimbing?
could he be outclimbing?
could we be outclimbing?
could you be outclimbing?
could they be outclimbing? 	could I have outclimbed?
could you have outclimbed?
could he have outclimbed?
could we have outclimbed?
could you have outclimbed?
could they have outclimbed? 	could I have been outclimbing?
could you have been outclimbing?
could he have been outclimbing?
could we have been outclimbing?
could you have been outclimbing?
could they have been outclimbing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I outclimb?
couldn't you outclimb?
couldn't he outclimb?
couldn't we outclimb?
couldn't you outclimb?
couldn't they outclimb? 	couldn't I be outclimbing?
couldn't you be outclimbing?
couldn't he be outclimbing?
couldn't we be outclimbing?
couldn't you be outclimbing?
couldn't they be outclimbing? 	couldn't I have outclimbed?
couldn't you have outclimbed?
couldn't he have outclimbed?
couldn't we have outclimbed?
couldn't you have outclimbed?
couldn't they have outclimbed? 	couldn't I have been outclimbing?
couldn't you have been outclimbing?
couldn't he have been outclimbing?
couldn't we have been outclimbing?
couldn't you have been outclimbing?
couldn't they have been outclimbing?