I must urge you must urge she must urge we must urge you must urge they must urge
V-ing form
I must be urging you must be urging she must be urging we must be urging you must be urging they must be urging
Perfect
I must have urged you must have urged she must have urged we must have urged you must have urged they must have urged
V-ing perfect
I must have been urging you must have been urging she must have been urging we must have been urging you must have been urging they must have been urging
Negation
Simple form
I must not urge you must not urge she must not urge we must not urge you must not urge they must not urge
V-ing form
I must not be urging you must not be urging she must not be urging we must not be urging you must not be urging they must not be urging
Perfect
I must not have urged you must not have urged she must not have urged we must not have urged you must not have urged they must not have urged
V-ing perfect
I must not have been urging you must not have been urging she must not have been urging we must not have been urging you must not have been urging they must not have been urging
Interrogative form
Simple form
must I urge? must you urge? must she urge? must we urge? must you urge? must they urge?
V-ing form
must I be urging? must you be urging? must she be urging? must we be urging? must you be urging? must they be urging?
Perfect
must I have urged? must you have urged? must she have urged? must we have urged? must you have urged? must they have urged?
V-ing perfect
must I have been urging? must you have been urging? must she have been urging? must we have been urging? must you have been urging? must they have been urging?
Interro-negative form
Simple form
must I not urge? must you not urge? must she not urge? must we not urge? must you not urge? must they not urge?
V-ing form
must I not be urging? must you not be urging? must she not be urging? must we not be urging? must you not be urging? must they not be urging?
Perfect
must I not have urged? must you not have urged? must she not have urged? must we not have urged? must you not have urged? must they not have urged?
V-ing perfect
must I not have been urging? must you not have been urging? must she not have been urging? must we not have been urging? must you not have been urging? must they not have been urging?