English verb conjugation
COULD VAMP

Regular verb: vamp - vamped - vamped

Affirmation

Simple form	V-ing form
I could vamp you could vamp he could vamp we could vamp you could vamp they could vamp	I could be vamping you could be vamping he could be vamping we could be vamping you could be vamping they could be vamping
Perfect	V-ing perfect
I could have vamped you could have vamped he could have vamped we could have vamped you could have vamped they could have vamped	I could have been vamping you could have been vamping he could have been vamping we could have been vamping you could have been vamping they could have been vamping

Negation

Simple form	V-ing form
I could not vamp you could not vamp he could not vamp we could not vamp you could not vamp they could not vamp	I could not be vamping you could not be vamping he could not be vamping we could not be vamping you could not be vamping they could not be vamping
Perfect	V-ing perfect
I could not have vamped you could not have vamped he could not have vamped we could not have vamped you could not have vamped they could not have vamped	I could not have been vamping you could not have been vamping he could not have been vamping we could not have been vamping you could not have been vamping they could not have been vamping

Interrogative form

Simple form	V-ing form
could I vamp? could you vamp? could he vamp? could we vamp? could you vamp? could they vamp?	could I be vamping? could you be vamping? could he be vamping? could we be vamping? could you be vamping? could they be vamping?
Perfect	V-ing perfect
could I have vamped? could you have vamped? could he have vamped? could we have vamped? could you have vamped? could they have vamped?	could I have been vamping? could you have been vamping? could he have been vamping? could we have been vamping? could you have been vamping? could they have been vamping?

Interro-negative form

Simple form	V-ing form
could I not vamp? could you not vamp? could he not vamp? could we not vamp? could you not vamp? could they not vamp?	could I not be vamping? could you not be vamping? could he not be vamping? could we not be vamping? could you not be vamping? could they not be vamping?
Perfect	V-ing perfect
could I not have vamped? could you not have vamped? could he not have vamped? could we not have vamped? could you not have vamped? could they not have vamped?	could I not have been vamping? could you not have been vamping? could he not have been vamping? could we not have been vamping? could you not have been vamping? could they not have been vamping?