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