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