Attention, ce verbe peut ne pas exister, la conjugaison est donnée à titre d'exemple.
Affirmation
Forme simple
I must isle isle you must isle isle she must isle isle we must isle isle you must isle isle they must isle isle
Forme en V-ing
I must be isle isling you must be isle isling she must be isle isling we must be isle isling you must be isle isling they must be isle isling
Perfect
I must have isle isled you must have isle isled she must have isle isled we must have isle isled you must have isle isled they must have isle isled
Perfect en V-ing
I must have been isle isling you must have been isle isling she must have been isle isling we must have been isle isling you must have been isle isling they must have been isle isling
Négation
Forme simple
I mustn't isle isle you mustn't isle isle she mustn't isle isle we mustn't isle isle you mustn't isle isle they mustn't isle isle
Forme en V-ing
I mustn't be isle isling you mustn't be isle isling she mustn't be isle isling we mustn't be isle isling you mustn't be isle isling they mustn't be isle isling
Perfect
I mustn't have isle isled you mustn't have isle isled she mustn't have isle isled we mustn't have isle isled you mustn't have isle isled they mustn't have isle isled
Perfect en V-ing
I mustn't have been isle isling you mustn't have been isle isling she mustn't have been isle isling we mustn't have been isle isling you mustn't have been isle isling they mustn't have been isle isling
Forme interrogative
Forme simple
must I isle isle? must you isle isle? must she isle isle? must we isle isle? must you isle isle? must they isle isle?
Forme en V-ing
must I be isle isling? must you be isle isling? must she be isle isling? must we be isle isling? must you be isle isling? must they be isle isling?
Perfect
must I have isle isled? must you have isle isled? must she have isle isled? must we have isle isled? must you have isle isled? must they have isle isled?
Perfect en V-ing
must I have been isle isling? must you have been isle isling? must she have been isle isling? must we have been isle isling? must you have been isle isling? must they have been isle isling?
Forme interro-négative
Forme simple
mustn't I isle isle? mustn't you isle isle? mustn't she isle isle? mustn't we isle isle? mustn't you isle isle? mustn't they isle isle?
Forme en V-ing
mustn't I be isle isling? mustn't you be isle isling? mustn't she be isle isling? mustn't we be isle isling? mustn't you be isle isling? mustn't they be isle isling?
Perfect
mustn't I have isle isled? mustn't you have isle isled? mustn't she have isle isled? mustn't we have isle isled? mustn't you have isle isled? mustn't they have isle isled?
Perfect en V-ing
mustn't I have been isle isling? mustn't you have been isle isling? mustn't she have been isle isling? mustn't we have been isle isling? mustn't you have been isle isling? mustn't they have been isle isling?