English verb conjugation
COULD CAP

Regular verb: cap - capped - capped

Affirmation

Simple form	V-ing form
I could cap you could cap she could cap we could cap you could cap they could cap	I could be capping you could be capping she could be capping we could be capping you could be capping they could be capping
Perfect	V-ing perfect
I could have capped you could have capped she could have capped we could have capped you could have capped they could have capped	I could have been capping you could have been capping she could have been capping we could have been capping you could have been capping they could have been capping

Negation

Simple form	V-ing form
I could not cap you could not cap she could not cap we could not cap you could not cap they could not cap	I could not be capping you could not be capping she could not be capping we could not be capping you could not be capping they could not be capping
Perfect	V-ing perfect
I could not have capped you could not have capped she could not have capped we could not have capped you could not have capped they could not have capped	I could not have been capping you could not have been capping she could not have been capping we could not have been capping you could not have been capping they could not have been capping

Interrogative form

Simple form	V-ing form
could I cap? could you cap? could she cap? could we cap? could you cap? could they cap?	could I be capping? could you be capping? could she be capping? could we be capping? could you be capping? could they be capping?
Perfect	V-ing perfect
could I have capped? could you have capped? could she have capped? could we have capped? could you have capped? could they have capped?	could I have been capping? could you have been capping? could she have been capping? could we have been capping? could you have been capping? could they have been capping?

Interro-negative form

Simple form	V-ing form
could I not cap? could you not cap? could she not cap? could we not cap? could you not cap? could they not cap?	could I not be capping? could you not be capping? could she not be capping? could we not be capping? could you not be capping? could they not be capping?
Perfect	V-ing perfect
could I not have capped? could you not have capped? could she not have capped? could we not have capped? could you not have capped? could they not have capped?	could I not have been capping? could you not have been capping? could she not have been capping? could we not have been capping? could you not have been capping? could they not have been capping?