I must photograph you must photograph she must photograph we must photograph you must photograph they must photograph
V-ing form
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
I must have photographed you must have photographed she must have photographed we must have photographed you must have photographed they must have photographed
V-ing perfect
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
I must not photograph you must not photograph she must not photograph we must not photograph you must not photograph they must not photograph
V-ing form
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
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
V-ing perfect
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
must I photograph? must you photograph? must she photograph? must we photograph? must you photograph? must they photograph?
V-ing form
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
must I have photographed? must you have photographed? must she have photographed? must we have photographed? must you have photographed? must they have photographed?
V-ing perfect
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
must I not photograph? must you not photograph? must she not photograph? must we not photograph? must you not photograph? must they not photograph?
V-ing form
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
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?
V-ing perfect
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?