I must flat-hunt you must flat-hunt she must flat-hunt we must flat-hunt you must flat-hunt they must flat-hunt
V-ing form
I must be flat-hunting you must be flat-hunting she must be flat-hunting we must be flat-hunting you must be flat-hunting they must be flat-hunting
Perfect
I must have flat-hunted you must have flat-hunted she must have flat-hunted we must have flat-hunted you must have flat-hunted they must have flat-hunted
V-ing perfect
I must have been flat-hunting you must have been flat-hunting she must have been flat-hunting we must have been flat-hunting you must have been flat-hunting they must have been flat-hunting
Negation
Simple form
I mustn't flat-hunt you mustn't flat-hunt she mustn't flat-hunt we mustn't flat-hunt you mustn't flat-hunt they mustn't flat-hunt
V-ing form
I mustn't be flat-hunting you mustn't be flat-hunting she mustn't be flat-hunting we mustn't be flat-hunting you mustn't be flat-hunting they mustn't be flat-hunting
Perfect
I mustn't have flat-hunted you mustn't have flat-hunted she mustn't have flat-hunted we mustn't have flat-hunted you mustn't have flat-hunted they mustn't have flat-hunted
V-ing perfect
I mustn't have been flat-hunting you mustn't have been flat-hunting she mustn't have been flat-hunting we mustn't have been flat-hunting you mustn't have been flat-hunting they mustn't have been flat-hunting
Interrogative form
Simple form
must I flat-hunt? must you flat-hunt? must she flat-hunt? must we flat-hunt? must you flat-hunt? must they flat-hunt?
V-ing form
must I be flat-hunting? must you be flat-hunting? must she be flat-hunting? must we be flat-hunting? must you be flat-hunting? must they be flat-hunting?
Perfect
must I have flat-hunted? must you have flat-hunted? must she have flat-hunted? must we have flat-hunted? must you have flat-hunted? must they have flat-hunted?
V-ing perfect
must I have been flat-hunting? must you have been flat-hunting? must she have been flat-hunting? must we have been flat-hunting? must you have been flat-hunting? must they have been flat-hunting?
Interro-negative form
Simple form
mustn't I flat-hunt? mustn't you flat-hunt? mustn't she flat-hunt? mustn't we flat-hunt? mustn't you flat-hunt? mustn't they flat-hunt?
V-ing form
mustn't I be flat-hunting? mustn't you be flat-hunting? mustn't she be flat-hunting? mustn't we be flat-hunting? mustn't you be flat-hunting? mustn't they be flat-hunting?
Perfect
mustn't I have flat-hunted? mustn't you have flat-hunted? mustn't she have flat-hunted? mustn't we have flat-hunted? mustn't you have flat-hunted? mustn't they have flat-hunted?
V-ing perfect
mustn't I have been flat-hunting? mustn't you have been flat-hunting? mustn't she have been flat-hunting? mustn't we have been flat-hunting? mustn't you have been flat-hunting? mustn't they have been flat-hunting?