English verb conjugation
MUST PHOTOGRAPH

Regular verb: photograph - photographed - photographed

Affirmation

Simple form	V-ing form
I must photograph you must photograph she must photograph we must photograph you must photograph they must photograph	I must be photographing you must be photographing she must be photographing we must be photographing you must be photographing they must be photographing
Perfect	V-ing perfect
I must have photographed you must have photographed she must have photographed we must have photographed you must have photographed they must have photographed	I must have been photographing you must have been photographing she must have been photographing we must have been photographing you must have been photographing they must have been photographing

Negation

Simple form	V-ing form
I must not photograph you must not photograph she must not photograph we must not photograph you must not photograph they must not photograph	I must not be photographing you must not be photographing she must not be photographing we must not be photographing you must not be photographing they must not be photographing
Perfect	V-ing perfect
I must not have photographed you must not have photographed she must not have photographed we must not have photographed you must not have photographed they must not have photographed	I must not have been photographing you must not have been photographing she must not have been photographing we must not have been photographing you must not have been photographing they must not have been photographing

Interrogative form

Simple form	V-ing form
must I photograph? must you photograph? must she photograph? must we photograph? must you photograph? must they photograph?	must I be photographing? must you be photographing? must she be photographing? must we be photographing? must you be photographing? must they be photographing?
Perfect	V-ing perfect
must I have photographed? must you have photographed? must she have photographed? must we have photographed? must you have photographed? must they have photographed?	must I have been photographing? must you have been photographing? must she have been photographing? must we have been photographing? must you have been photographing? must they have been photographing?

Interro-negative form

Simple form	V-ing form
must I not photograph? must you not photograph? must she not photograph? must we not photograph? must you not photograph? must they not photograph?	must I not be photographing? must you not be photographing? must she not be photographing? must we not be photographing? must you not be photographing? must they not be photographing?
Perfect	V-ing perfect
must I not have photographed? must you not have photographed? must she not have photographed? must we not have photographed? must you not have photographed? must they not have photographed?	must I not have been photographing? must you not have been photographing? must she not have been photographing? must we not have been photographing? must you not have been photographing? must they not have been photographing?