Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could visit visit you could visit visit he could visit visit we could visit visit you could visit visit they could visit visit
V-ing form
I could be visit visiting you could be visit visiting he could be visit visiting we could be visit visiting you could be visit visiting they could be visit visiting
Perfect
I could have visit visited you could have visit visited he could have visit visited we could have visit visited you could have visit visited they could have visit visited
V-ing perfect
I could have been visit visiting you could have been visit visiting he could have been visit visiting we could have been visit visiting you could have been visit visiting they could have been visit visiting
Negation
Simple form
I could not visit visit you could not visit visit he could not visit visit we could not visit visit you could not visit visit they could not visit visit
V-ing form
I could not be visit visiting you could not be visit visiting he could not be visit visiting we could not be visit visiting you could not be visit visiting they could not be visit visiting
Perfect
I could not have visit visited you could not have visit visited he could not have visit visited we could not have visit visited you could not have visit visited they could not have visit visited
V-ing perfect
I could not have been visit visiting you could not have been visit visiting he could not have been visit visiting we could not have been visit visiting you could not have been visit visiting they could not have been visit visiting
Interrogative form
Simple form
could I visit visit? could you visit visit? could he visit visit? could we visit visit? could you visit visit? could they visit visit?
V-ing form
could I be visit visiting? could you be visit visiting? could he be visit visiting? could we be visit visiting? could you be visit visiting? could they be visit visiting?
Perfect
could I have visit visited? could you have visit visited? could he have visit visited? could we have visit visited? could you have visit visited? could they have visit visited?
V-ing perfect
could I have been visit visiting? could you have been visit visiting? could he have been visit visiting? could we have been visit visiting? could you have been visit visiting? could they have been visit visiting?
Interro-negative form
Simple form
could I not visit visit? could you not visit visit? could he not visit visit? could we not visit visit? could you not visit visit? could they not visit visit?
V-ing form
could I not be visit visiting? could you not be visit visiting? could he not be visit visiting? could we not be visit visiting? could you not be visit visiting? could they not be visit visiting?
Perfect
could I not have visit visited? could you not have visit visited? could he not have visit visited? could we not have visit visited? could you not have visit visited? could they not have visit visited?
V-ing perfect
could I not have been visit visiting? could you not have been visit visiting? could he not have been visit visiting? could we not have been visit visiting? could you not have been visit visiting? could they not have been visit visiting?