English verb conjugation
CAN COG

Regular verb: cog - coged - coged

Affirmation

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

Negation

Simple form	V-ing form
I can't cog you can't cog he can't cog we can't cog you can't cog they can't cog	I can't be coging you can't be coging he can't be coging we can't be coging you can't be coging they can't be coging
Perfect	V-ing perfect
I can't have coged you can't have coged he can't have coged we can't have coged you can't have coged they can't have coged	I can't have been coging you can't have been coging he can't have been coging we can't have been coging you can't have been coging they can't have been coging

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can't I cog? can't you cog? can't he cog? can't we cog? can't you cog? can't they cog?	can't I be coging? can't you be coging? can't he be coging? can't we be coging? can't you be coging? can't they be coging?
Perfect	V-ing perfect
can't I have coged? can't you have coged? can't he have coged? can't we have coged? can't you have coged? can't they have coged?	can't I have been coging? can't you have been coging? can't he have been coging? can't we have been coging? can't you have been coging? can't they have been coging?