English verb conjugation
COULD ZAP

Regular verb: zap - zapped - zapped

Affirmation

Simple form	V-ing form
I could zap you could zap he could zap we could zap you could zap they could zap	I could be zapping you could be zapping he could be zapping we could be zapping you could be zapping they could be zapping
Perfect	V-ing perfect
I could have zapped you could have zapped he could have zapped we could have zapped you could have zapped they could have zapped	I could have been zapping you could have been zapping he could have been zapping we could have been zapping you could have been zapping they could have been zapping

Negation

Simple form	V-ing form
I could not zap you could not zap he could not zap we could not zap you could not zap they could not zap	I could not be zapping you could not be zapping he could not be zapping we could not be zapping you could not be zapping they could not be zapping
Perfect	V-ing perfect
I could not have zapped you could not have zapped he could not have zapped we could not have zapped you could not have zapped they could not have zapped	I could not have been zapping you could not have been zapping he could not have been zapping we could not have been zapping you could not have been zapping they could not have been zapping

Interrogative form

Simple form	V-ing form
could I zap? could you zap? could he zap? could we zap? could you zap? could they zap?	could I be zapping? could you be zapping? could he be zapping? could we be zapping? could you be zapping? could they be zapping?
Perfect	V-ing perfect
could I have zapped? could you have zapped? could he have zapped? could we have zapped? could you have zapped? could they have zapped?	could I have been zapping? could you have been zapping? could he have been zapping? could we have been zapping? could you have been zapping? could they have been zapping?

Interro-negative form

Simple form	V-ing form
could I not zap? could you not zap? could he not zap? could we not zap? could you not zap? could they not zap?	could I not be zapping? could you not be zapping? could he not be zapping? could we not be zapping? could you not be zapping? could they not be zapping?
Perfect	V-ing perfect
could I not have zapped? could you not have zapped? could he not have zapped? could we not have zapped? could you not have zapped? could they not have zapped?	could I not have been zapping? could you not have been zapping? could he not have been zapping? could we not have been zapping? could you not have been zapping? could they not have been zapping?