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