English verb conjugation
COULD COG

Regular verb: cog - coged - coged

Affirmation

Simple form	V-ing form
I could cog you could cog she could cog we could cog you could cog they could cog	I could be coging you could be coging she could be coging we could be coging you could be coging they could be coging
Perfect	V-ing perfect
I could have coged you could have coged she could have coged we could have coged you could have coged they could have coged	I could have been coging you could have been coging she could have been coging we could have been coging you could have been coging they could have been coging

Negation

Simple form	V-ing form
I could not cog you could not cog she could not cog we could not cog you could not cog they could not cog	I could not be coging you could not be coging she could not be coging we could not be coging you could not be coging they could not be coging
Perfect	V-ing perfect
I could not have coged you could not have coged she could not have coged we could not have coged you could not have coged they could not have coged	I could not have been coging you could not have been coging she could not have been coging we could not have been coging you could not have been coging they could not have been coging

Interrogative form

Simple form	V-ing form
could I cog? could you cog? could she cog? could we cog? could you cog? could they cog?	could I be coging? could you be coging? could she be coging? could we be coging? could you be coging? could they be coging?
Perfect	V-ing perfect
could I have coged? could you have coged? could she have coged? could we have coged? could you have coged? could they have coged?	could I have been coging? could you have been coging? could she have been coging? could we have been coging? could you have been coging? could they have been coging?

Interro-negative form

Simple form	V-ing form
could I not cog? could you not cog? could she not cog? could we not cog? could you not cog? could they not cog?	could I not be coging? could you not be coging? could she not be coging? could we not be coging? could you not be coging? could they not be coging?
Perfect	V-ing perfect
could I not have coged? could you not have coged? could she not have coged? could we not have coged? could you not have coged? could they not have coged?	could I not have been coging? could you not have been coging? could she not have been coging? could we not have been coging? could you not have been coging? could they not have been coging?