could confound
Regular verb: confound - confounded- confounded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could confound
you could confound
he could confound
we could confound
you could confound
they could confound 	I could be confounding
you could be confounding
he could be confounding
we could be confounding
you could be confounding
they could be confounding	I could have confounded
you could have confounded
he could have confounded
we could have confounded
you could have confounded
they could have confounded	I could have been confounding
you could have been confounding
he could have been confounding
we could have been confounding
you could have been confounding
they could have been confounding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't confound
you couldn't confound
he couldn't confound
we couldn't confound
you couldn't confound
they couldn't confound 	I couldn't be confounding
you couldn't be confounding
he couldn't be confounding
we couldn't be confounding
you couldn't be confounding
they couldn't be confounding	I couldn't have confounded
you couldn't have confounded
he couldn't have confounded
we couldn't have confounded
you couldn't have confounded
they couldn't have confounded	I couldn't have been confounding
you couldn't have been confounding
he couldn't have been confounding
we couldn't have been confounding
you couldn't have been confounding
they couldn't have been confounding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I confound?
could you confound?
could he confound?
could we confound?
could you confound?
could they confound? 	could I be confounding?
could you be confounding?
could he be confounding?
could we be confounding?
could you be confounding?
could they be confounding? 	could I have confounded?
could you have confounded?
could he have confounded?
could we have confounded?
could you have confounded?
could they have confounded? 	could I have been confounding?
could you have been confounding?
could he have been confounding?
could we have been confounding?
could you have been confounding?
could they have been confounding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I confound?
couldn't you confound?
couldn't he confound?
couldn't we confound?
couldn't you confound?
couldn't they confound? 	couldn't I be confounding?
couldn't you be confounding?
couldn't he be confounding?
couldn't we be confounding?
couldn't you be confounding?
couldn't they be confounding? 	couldn't I have confounded?
couldn't you have confounded?
couldn't he have confounded?
couldn't we have confounded?
couldn't you have confounded?
couldn't they have confounded? 	couldn't I have been confounding?
couldn't you have been confounding?
couldn't he have been confounding?
couldn't we have been confounding?
couldn't you have been confounding?
couldn't they have been confounding?