English verb conjugation
COULD POLE-VAULT

Regular verb: pole-vault - pole-vaulted - pole-vaulted

Affirmation

Simple form	V-ing form
I could pole-vault you could pole-vault he could pole-vault we could pole-vault you could pole-vault they could pole-vault	I could be pole-vaulting you could be pole-vaulting he could be pole-vaulting we could be pole-vaulting you could be pole-vaulting they could be pole-vaulting
Perfect	V-ing perfect
I could have pole-vaulted you could have pole-vaulted he could have pole-vaulted we could have pole-vaulted you could have pole-vaulted they could have pole-vaulted	I could have been pole-vaulting you could have been pole-vaulting he could have been pole-vaulting we could have been pole-vaulting you could have been pole-vaulting they could have been pole-vaulting

Negation

Simple form	V-ing form
I could not pole-vault you could not pole-vault he could not pole-vault we could not pole-vault you could not pole-vault they could not pole-vault	I could not be pole-vaulting you could not be pole-vaulting he could not be pole-vaulting we could not be pole-vaulting you could not be pole-vaulting they could not be pole-vaulting
Perfect	V-ing perfect
I could not have pole-vaulted you could not have pole-vaulted he could not have pole-vaulted we could not have pole-vaulted you could not have pole-vaulted they could not have pole-vaulted	I could not have been pole-vaulting you could not have been pole-vaulting he could not have been pole-vaulting we could not have been pole-vaulting you could not have been pole-vaulting they could not have been pole-vaulting

Interrogative form

Simple form	V-ing form
could I pole-vault? could you pole-vault? could he pole-vault? could we pole-vault? could you pole-vault? could they pole-vault?	could I be pole-vaulting? could you be pole-vaulting? could he be pole-vaulting? could we be pole-vaulting? could you be pole-vaulting? could they be pole-vaulting?
Perfect	V-ing perfect
could I have pole-vaulted? could you have pole-vaulted? could he have pole-vaulted? could we have pole-vaulted? could you have pole-vaulted? could they have pole-vaulted?	could I have been pole-vaulting? could you have been pole-vaulting? could he have been pole-vaulting? could we have been pole-vaulting? could you have been pole-vaulting? could they have been pole-vaulting?

Interro-negative form

Simple form	V-ing form
could I not pole-vault? could you not pole-vault? could he not pole-vault? could we not pole-vault? could you not pole-vault? could they not pole-vault?	could I not be pole-vaulting? could you not be pole-vaulting? could he not be pole-vaulting? could we not be pole-vaulting? could you not be pole-vaulting? could they not be pole-vaulting?
Perfect	V-ing perfect
could I not have pole-vaulted? could you not have pole-vaulted? could he not have pole-vaulted? could we not have pole-vaulted? could you not have pole-vaulted? could they not have pole-vaulted?	could I not have been pole-vaulting? could you not have been pole-vaulting? could he not have been pole-vaulting? could we not have been pole-vaulting? could you not have been pole-vaulting? could they not have been pole-vaulting?