Regular verb: administer - administered - administered
Affirmation
Simple form
I must administer you must administer she must administer we must administer you must administer they must administer
V-ing form
I must be administering you must be administering she must be administering we must be administering you must be administering they must be administering
Perfect
I must have administered you must have administered she must have administered we must have administered you must have administered they must have administered
V-ing perfect
I must have been administering you must have been administering she must have been administering we must have been administering you must have been administering they must have been administering
Negation
Simple form
I mustn't administer you mustn't administer she mustn't administer we mustn't administer you mustn't administer they mustn't administer
V-ing form
I mustn't be administering you mustn't be administering she mustn't be administering we mustn't be administering you mustn't be administering they mustn't be administering
Perfect
I mustn't have administered you mustn't have administered she mustn't have administered we mustn't have administered you mustn't have administered they mustn't have administered
V-ing perfect
I mustn't have been administering you mustn't have been administering she mustn't have been administering we mustn't have been administering you mustn't have been administering they mustn't have been administering
Interrogative form
Simple form
must I administer? must you administer? must she administer? must we administer? must you administer? must they administer?
V-ing form
must I be administering? must you be administering? must she be administering? must we be administering? must you be administering? must they be administering?
Perfect
must I have administered? must you have administered? must she have administered? must we have administered? must you have administered? must they have administered?
V-ing perfect
must I have been administering? must you have been administering? must she have been administering? must we have been administering? must you have been administering? must they have been administering?
Interro-negative form
Simple form
mustn't I administer? mustn't you administer? mustn't she administer? mustn't we administer? mustn't you administer? mustn't they administer?
V-ing form
mustn't I be administering? mustn't you be administering? mustn't she be administering? mustn't we be administering? mustn't you be administering? mustn't they be administering?
Perfect
mustn't I have administered? mustn't you have administered? mustn't she have administered? mustn't we have administered? mustn't you have administered? mustn't they have administered?
V-ing perfect
mustn't I have been administering? mustn't you have been administering? mustn't she have been administering? mustn't we have been administering? mustn't you have been administering? mustn't they have been administering?