I must centralize you must centralize he must centralize we must centralize you must centralize they must centralize
V-ing form
I must be centralizing you must be centralizing he must be centralizing we must be centralizing you must be centralizing they must be centralizing
Perfect
I must have centralized you must have centralized he must have centralized we must have centralized you must have centralized they must have centralized
V-ing perfect
I must have been centralizing you must have been centralizing he must have been centralizing we must have been centralizing you must have been centralizing they must have been centralizing
Negation
Simple form
I must not centralize you must not centralize he must not centralize we must not centralize you must not centralize they must not centralize
V-ing form
I must not be centralizing you must not be centralizing he must not be centralizing we must not be centralizing you must not be centralizing they must not be centralizing
Perfect
I must not have centralized you must not have centralized he must not have centralized we must not have centralized you must not have centralized they must not have centralized
V-ing perfect
I must not have been centralizing you must not have been centralizing he must not have been centralizing we must not have been centralizing you must not have been centralizing they must not have been centralizing
Interrogative form
Simple form
must I centralize? must you centralize? must he centralize? must we centralize? must you centralize? must they centralize?
V-ing form
must I be centralizing? must you be centralizing? must he be centralizing? must we be centralizing? must you be centralizing? must they be centralizing?
Perfect
must I have centralized? must you have centralized? must he have centralized? must we have centralized? must you have centralized? must they have centralized?
V-ing perfect
must I have been centralizing? must you have been centralizing? must he have been centralizing? must we have been centralizing? must you have been centralizing? must they have been centralizing?
Interro-negative form
Simple form
must I not centralize? must you not centralize? must he not centralize? must we not centralize? must you not centralize? must they not centralize?
V-ing form
must I not be centralizing? must you not be centralizing? must he not be centralizing? must we not be centralizing? must you not be centralizing? must they not be centralizing?
Perfect
must I not have centralized? must you not have centralized? must he not have centralized? must we not have centralized? must you not have centralized? must they not have centralized?
V-ing perfect
must I not have been centralizing? must you not have been centralizing? must he not have been centralizing? must we not have been centralizing? must you not have been centralizing? must they not have been centralizing?