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