could vision
Regular verb: vision - visioned- visioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could vision
you could vision
she could vision
we could vision
you could vision
they could vision 	I could be visioning
you could be visioning
she could be visioning
we could be visioning
you could be visioning
they could be visioning	I could have visioned
you could have visioned
she could have visioned
we could have visioned
you could have visioned
they could have visioned	I could have been visioning
you could have been visioning
she could have been visioning
we could have been visioning
you could have been visioning
they could have been visioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not vision
you could not vision
she could not vision
we could not vision
you could not vision
they could not vision 	I could not be visioning
you could not be visioning
she could not be visioning
we could not be visioning
you could not be visioning
they could not be visioning	I could not have visioned
you could not have visioned
she could not have visioned
we could not have visioned
you could not have visioned
they could not have visioned	I could not have been visioning
you could not have been visioning
she could not have been visioning
we could not have been visioning
you could not have been visioning
they could not have been visioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I vision?
could you vision?
could she vision?
could we vision?
could you vision?
could they vision? 	could I be visioning?
could you be visioning?
could she be visioning?
could we be visioning?
could you be visioning?
could they be visioning? 	could I have visioned?
could you have visioned?
could she have visioned?
could we have visioned?
could you have visioned?
could they have visioned? 	could I have been visioning?
could you have been visioning?
could she have been visioning?
could we have been visioning?
could you have been visioning?
could they have been visioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not vision?
could you not vision?
could she not vision?
could we not vision?
could you not vision?
could they not vision? 	could I not be visioning?
could you not be visioning?
could she not be visioning?
could we not be visioning?
could you not be visioning?
could they not be visioning? 	could I not have visioned?
could you not have visioned?
could she not have visioned?
could we not have visioned?
could you not have visioned?
could they not have visioned? 	could I not have been visioning?
could you not have been visioning?
could she not have been visioning?
could we not have been visioning?
could you not have been visioning?
could they not have been visioning?