I must chagrin you must chagrin he must chagrin we must chagrin you must chagrin they must chagrin
Forme en V-ing
I must be chagrining you must be chagrining he must be chagrining we must be chagrining you must be chagrining they must be chagrining
Perfect
I must have chagrined you must have chagrined he must have chagrined we must have chagrined you must have chagrined they must have chagrined
Perfect en V-ing
I must have been chagrining you must have been chagrining he must have been chagrining we must have been chagrining you must have been chagrining they must have been chagrining
Négation
Forme simple
I mustn't chagrin you mustn't chagrin he mustn't chagrin we mustn't chagrin you mustn't chagrin they mustn't chagrin
Forme en V-ing
I mustn't be chagrining you mustn't be chagrining he mustn't be chagrining we mustn't be chagrining you mustn't be chagrining they mustn't be chagrining
Perfect
I mustn't have chagrined you mustn't have chagrined he mustn't have chagrined we mustn't have chagrined you mustn't have chagrined they mustn't have chagrined
Perfect en V-ing
I mustn't have been chagrining you mustn't have been chagrining he mustn't have been chagrining we mustn't have been chagrining you mustn't have been chagrining they mustn't have been chagrining
Forme interrogative
Forme simple
must I chagrin? must you chagrin? must he chagrin? must we chagrin? must you chagrin? must they chagrin?
Forme en V-ing
must I be chagrining? must you be chagrining? must he be chagrining? must we be chagrining? must you be chagrining? must they be chagrining?
Perfect
must I have chagrined? must you have chagrined? must he have chagrined? must we have chagrined? must you have chagrined? must they have chagrined?
Perfect en V-ing
must I have been chagrining? must you have been chagrining? must he have been chagrining? must we have been chagrining? must you have been chagrining? must they have been chagrining?
Forme interro-négative
Forme simple
mustn't I chagrin? mustn't you chagrin? mustn't he chagrin? mustn't we chagrin? mustn't you chagrin? mustn't they chagrin?
Forme en V-ing
mustn't I be chagrining? mustn't you be chagrining? mustn't he be chagrining? mustn't we be chagrining? mustn't you be chagrining? mustn't they be chagrining?
Perfect
mustn't I have chagrined? mustn't you have chagrined? mustn't he have chagrined? mustn't we have chagrined? mustn't you have chagrined? mustn't they have chagrined?
Perfect en V-ing
mustn't I have been chagrining? mustn't you have been chagrining? mustn't he have been chagrining? mustn't we have been chagrining? mustn't you have been chagrining? mustn't they have been chagrining?