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