I must leave you must leave he must leave we must leave you must leave they must leave
Forma com V-ing
I must be leaving you must be leaving he must be leaving we must be leaving you must be leaving they must be leaving
Perfeito
I must have left you must have left he must have left we must have left you must have left they must have left
Perfeito com V-ing
I must have been leaving you must have been leaving he must have been leaving we must have been leaving you must have been leaving they must have been leaving
Negação
Forma simple
I mustn't leave you mustn't leave he mustn't leave we mustn't leave you mustn't leave they mustn't leave
Forma com V-ing
I mustn't be leaving you mustn't be leaving he mustn't be leaving we mustn't be leaving you mustn't be leaving they mustn't be leaving
Perfeito
I mustn't have left you mustn't have left he mustn't have left we mustn't have left you mustn't have left they mustn't have left
Perfeito com V-ing
I mustn't have been leaving you mustn't have been leaving he mustn't have been leaving we mustn't have been leaving you mustn't have been leaving they mustn't have been leaving
Forma interrogativa
Forma simple
must I leave? must you leave? must he leave? must we leave? must you leave? must they leave?
Forma com V-ing
must I be leaving? must you be leaving? must he be leaving? must we be leaving? must you be leaving? must they be leaving?
Perfeito
must I have left? must you have left? must he have left? must we have left? must you have left? must they have left?
Perfeito com V-ing
must I have been leaving? must you have been leaving? must he have been leaving? must we have been leaving? must you have been leaving? must they have been leaving?
Forma interro-Negação
Forma simple
mustn't I leave? mustn't you leave? mustn't he leave? mustn't we leave? mustn't you leave? mustn't they leave?
Forma com V-ing
mustn't I be leaving? mustn't you be leaving? mustn't he be leaving? mustn't we be leaving? mustn't you be leaving? mustn't they be leaving?
Perfeito
mustn't I have left? mustn't you have left? mustn't he have left? mustn't we have left? mustn't you have left? mustn't they have left?
Perfeito com V-ing
mustn't I have been leaving? mustn't you have been leaving? mustn't he have been leaving? mustn't we have been leaving? mustn't you have been leaving? mustn't they have been leaving?