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