I must administrate you must administrate she must administrate we must administrate you must administrate they must administrate
V-ing form
I must be administrating you must be administrating she must be administrating we must be administrating you must be administrating they must be administrating
Perfect
I must have administrated you must have administrated she 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 she 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 she 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 she 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 she 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 she 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 she administrate? must we administrate? must you administrate? must they administrate?
V-ing form
must I be administrating? must you be administrating? must she be administrating? must we be administrating? must you be administrating? must they be administrating?
Perfect
must I have administrated? must you have administrated? must she 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 she 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 she 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 she 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 she 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 she have been administrating? mustn't we have been administrating? mustn't you have been administrating? mustn't they have been administrating?