English verb conjugation
MUST VAMP

Regular verb: vamp - vamped - vamped

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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