I must dupe you must dupe he must dupe we must dupe you must dupe they must dupe
Forma com V-ing
I must be duping you must be duping he must be duping we must be duping you must be duping they must be duping
Perfeito
I must have duped you must have duped he must have duped we must have duped you must have duped they must have duped
Perfeito com V-ing
I must have been duping you must have been duping he must have been duping we must have been duping you must have been duping they must have been duping
Negação
Forma simple
I mustn't dupe you mustn't dupe he mustn't dupe we mustn't dupe you mustn't dupe they mustn't dupe
Forma com V-ing
I mustn't be duping you mustn't be duping he mustn't be duping we mustn't be duping you mustn't be duping they mustn't be duping
Perfeito
I mustn't have duped you mustn't have duped he mustn't have duped we mustn't have duped you mustn't have duped they mustn't have duped
Perfeito com V-ing
I mustn't have been duping you mustn't have been duping he mustn't have been duping we mustn't have been duping you mustn't have been duping they mustn't have been duping
Forma interrogativa
Forma simple
must I dupe? must you dupe? must he dupe? must we dupe? must you dupe? must they dupe?
Forma com V-ing
must I be duping? must you be duping? must he be duping? must we be duping? must you be duping? must they be duping?
Perfeito
must I have duped? must you have duped? must he have duped? must we have duped? must you have duped? must they have duped?
Perfeito com V-ing
must I have been duping? must you have been duping? must he have been duping? must we have been duping? must you have been duping? must they have been duping?
Forma interro-Negação
Forma simple
mustn't I dupe? mustn't you dupe? mustn't he dupe? mustn't we dupe? mustn't you dupe? mustn't they dupe?
Forma com V-ing
mustn't I be duping? mustn't you be duping? mustn't he be duping? mustn't we be duping? mustn't you be duping? mustn't they be duping?
Perfeito
mustn't I have duped? mustn't you have duped? mustn't he have duped? mustn't we have duped? mustn't you have duped? mustn't they have duped?
Perfeito com V-ing
mustn't I have been duping? mustn't you have been duping? mustn't he have been duping? mustn't we have been duping? mustn't you have been duping? mustn't they have been duping?