I must curl you must curl she must curl we must curl you must curl they must curl
Forme en V-ing
I must be curling you must be curling she must be curling we must be curling you must be curling they must be curling
Perfect
I must have curled you must have curled she 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 she 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 she 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 she 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 she 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 she 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 she curl? must we curl? must you curl? must they curl?
Forme en V-ing
must I be curling? must you be curling? must she be curling? must we be curling? must you be curling? must they be curling?
Perfect
must I have curled? must you have curled? must she 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 she 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 she 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 she 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 she 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 she have been curling? mustn't we have been curling? mustn't you have been curling? mustn't they have been curling?