I must elect you must elect she must elect we must elect you must elect they must elect
V-ing form
I must be electing you must be electing she must be electing we must be electing you must be electing they must be electing
Perfect
I must have elected you must have elected she must have elected we must have elected you must have elected they must have elected
V-ing perfect
I must have been electing you must have been electing she must have been electing we must have been electing you must have been electing they must have been electing
Negation
Simple form
I must not elect you must not elect she must not elect we must not elect you must not elect they must not elect
V-ing form
I must not be electing you must not be electing she must not be electing we must not be electing you must not be electing they must not be electing
Perfect
I must not have elected you must not have elected she must not have elected we must not have elected you must not have elected they must not have elected
V-ing perfect
I must not have been electing you must not have been electing she must not have been electing we must not have been electing you must not have been electing they must not have been electing
Interrogative form
Simple form
must I elect? must you elect? must she elect? must we elect? must you elect? must they elect?
V-ing form
must I be electing? must you be electing? must she be electing? must we be electing? must you be electing? must they be electing?
Perfect
must I have elected? must you have elected? must she have elected? must we have elected? must you have elected? must they have elected?
V-ing perfect
must I have been electing? must you have been electing? must she have been electing? must we have been electing? must you have been electing? must they have been electing?
Interro-negative form
Simple form
must I not elect? must you not elect? must she not elect? must we not elect? must you not elect? must they not elect?
V-ing form
must I not be electing? must you not be electing? must she not be electing? must we not be electing? must you not be electing? must they not be electing?
Perfect
must I not have elected? must you not have elected? must she not have elected? must we not have elected? must you not have elected? must they not have elected?
V-ing perfect
must I not have been electing? must you not have been electing? must she not have been electing? must we not have been electing? must you not have been electing? must they not have been electing?