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