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