I must down you must down he must down we must down you must down they must down
Forma com V-ing
I must be downing you must be downing he must be downing we must be downing you must be downing they must be downing
Perfeito
I must have downed you must have downed he must have downed we must have downed you must have downed they must have downed
Perfeito com V-ing
I must have been downing you must have been downing he must have been downing we must have been downing you must have been downing they must have been downing
Negação
Forma simple
I mustn't down you mustn't down he mustn't down we mustn't down you mustn't down they mustn't down
Forma com V-ing
I mustn't be downing you mustn't be downing he mustn't be downing we mustn't be downing you mustn't be downing they mustn't be downing
Perfeito
I mustn't have downed you mustn't have downed he mustn't have downed we mustn't have downed you mustn't have downed they mustn't have downed
Perfeito com V-ing
I mustn't have been downing you mustn't have been downing he mustn't have been downing we mustn't have been downing you mustn't have been downing they mustn't have been downing
Forma interrogativa
Forma simple
must I down? must you down? must he down? must we down? must you down? must they down?
Forma com V-ing
must I be downing? must you be downing? must he be downing? must we be downing? must you be downing? must they be downing?
Perfeito
must I have downed? must you have downed? must he have downed? must we have downed? must you have downed? must they have downed?
Perfeito com V-ing
must I have been downing? must you have been downing? must he have been downing? must we have been downing? must you have been downing? must they have been downing?
Forma interro-Negação
Forma simple
mustn't I down? mustn't you down? mustn't he down? mustn't we down? mustn't you down? mustn't they down?
Forma com V-ing
mustn't I be downing? mustn't you be downing? mustn't he be downing? mustn't we be downing? mustn't you be downing? mustn't they be downing?
Perfeito
mustn't I have downed? mustn't you have downed? mustn't he have downed? mustn't we have downed? mustn't you have downed? mustn't they have downed?
Perfeito com V-ing
mustn't I have been downing? mustn't you have been downing? mustn't he have been downing? mustn't we have been downing? mustn't you have been downing? mustn't they have been downing?