I must administrate you must administrate he must administrate we must administrate you must administrate they must administrate
V-ing form
I must be administrating you must be administrating he must be administrating we must be administrating you must be administrating they must be administrating
Perfect
I must have administrated you must have administrated he must have administrated we must have administrated you must have administrated they must have administrated
V-ing perfect
I must have been administrating you must have been administrating he must have been administrating we must have been administrating you must have been administrating they must have been administrating
Negation
Simple form
I mustn't administrate you mustn't administrate he mustn't administrate we mustn't administrate you mustn't administrate they mustn't administrate
V-ing form
I mustn't be administrating you mustn't be administrating he mustn't be administrating we mustn't be administrating you mustn't be administrating they mustn't be administrating
Perfect
I mustn't have administrated you mustn't have administrated he mustn't have administrated we mustn't have administrated you mustn't have administrated they mustn't have administrated
V-ing perfect
I mustn't have been administrating you mustn't have been administrating he mustn't have been administrating we mustn't have been administrating you mustn't have been administrating they mustn't have been administrating
Interrogative form
Simple form
must I administrate? must you administrate? must he administrate? must we administrate? must you administrate? must they administrate?
V-ing form
must I be administrating? must you be administrating? must he be administrating? must we be administrating? must you be administrating? must they be administrating?
Perfect
must I have administrated? must you have administrated? must he have administrated? must we have administrated? must you have administrated? must they have administrated?
V-ing perfect
must I have been administrating? must you have been administrating? must he have been administrating? must we have been administrating? must you have been administrating? must they have been administrating?
Interro-negative form
Simple form
mustn't I administrate? mustn't you administrate? mustn't he administrate? mustn't we administrate? mustn't you administrate? mustn't they administrate?
V-ing form
mustn't I be administrating? mustn't you be administrating? mustn't he be administrating? mustn't we be administrating? mustn't you be administrating? mustn't they be administrating?
Perfect
mustn't I have administrated? mustn't you have administrated? mustn't he have administrated? mustn't we have administrated? mustn't you have administrated? mustn't they have administrated?
V-ing perfect
mustn't I have been administrating? mustn't you have been administrating? mustn't he have been administrating? mustn't we have been administrating? mustn't you have been administrating? mustn't they have been administrating?