could enable
Regular verb: enable - enabled- enabled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could enable
you could enable
he could enable
we could enable
you could enable
they could enable 	I could be enabling
you could be enabling
he could be enabling
we could be enabling
you could be enabling
they could be enabling	I could have enabled
you could have enabled
he could have enabled
we could have enabled
you could have enabled
they could have enabled	I could have been enabling
you could have been enabling
he could have been enabling
we could have been enabling
you could have been enabling
they could have been enabling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't enable
you couldn't enable
he couldn't enable
we couldn't enable
you couldn't enable
they couldn't enable 	I couldn't be enabling
you couldn't be enabling
he couldn't be enabling
we couldn't be enabling
you couldn't be enabling
they couldn't be enabling	I couldn't have enabled
you couldn't have enabled
he couldn't have enabled
we couldn't have enabled
you couldn't have enabled
they couldn't have enabled	I couldn't have been enabling
you couldn't have been enabling
he couldn't have been enabling
we couldn't have been enabling
you couldn't have been enabling
they couldn't have been enabling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I enable?
could you enable?
could he enable?
could we enable?
could you enable?
could they enable? 	could I be enabling?
could you be enabling?
could he be enabling?
could we be enabling?
could you be enabling?
could they be enabling? 	could I have enabled?
could you have enabled?
could he have enabled?
could we have enabled?
could you have enabled?
could they have enabled? 	could I have been enabling?
could you have been enabling?
could he have been enabling?
could we have been enabling?
could you have been enabling?
could they have been enabling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I enable?
couldn't you enable?
couldn't he enable?
couldn't we enable?
couldn't you enable?
couldn't they enable? 	couldn't I be enabling?
couldn't you be enabling?
couldn't he be enabling?
couldn't we be enabling?
couldn't you be enabling?
couldn't they be enabling? 	couldn't I have enabled?
couldn't you have enabled?
couldn't he have enabled?
couldn't we have enabled?
couldn't you have enabled?
couldn't they have enabled? 	couldn't I have been enabling?
couldn't you have been enabling?
couldn't he have been enabling?
couldn't we have been enabling?
couldn't you have been enabling?
couldn't they have been enabling?