I must barn you must barn he must barn we must barn you must barn they must barn
Forma com V-ing
I must be barning you must be barning he must be barning we must be barning you must be barning they must be barning
Perfeito
I must have barned you must have barned he must have barned we must have barned you must have barned they must have barned
Perfeito com V-ing
I must have been barning you must have been barning he must have been barning we must have been barning you must have been barning they must have been barning
Negação
Forma simple
I mustn't barn you mustn't barn he mustn't barn we mustn't barn you mustn't barn they mustn't barn
Forma com V-ing
I mustn't be barning you mustn't be barning he mustn't be barning we mustn't be barning you mustn't be barning they mustn't be barning
Perfeito
I mustn't have barned you mustn't have barned he mustn't have barned we mustn't have barned you mustn't have barned they mustn't have barned
Perfeito com V-ing
I mustn't have been barning you mustn't have been barning he mustn't have been barning we mustn't have been barning you mustn't have been barning they mustn't have been barning
Forma interrogativa
Forma simple
must I barn? must you barn? must he barn? must we barn? must you barn? must they barn?
Forma com V-ing
must I be barning? must you be barning? must he be barning? must we be barning? must you be barning? must they be barning?
Perfeito
must I have barned? must you have barned? must he have barned? must we have barned? must you have barned? must they have barned?
Perfeito com V-ing
must I have been barning? must you have been barning? must he have been barning? must we have been barning? must you have been barning? must they have been barning?
Forma interro-Negação
Forma simple
mustn't I barn? mustn't you barn? mustn't he barn? mustn't we barn? mustn't you barn? mustn't they barn?
Forma com V-ing
mustn't I be barning? mustn't you be barning? mustn't he be barning? mustn't we be barning? mustn't you be barning? mustn't they be barning?
Perfeito
mustn't I have barned? mustn't you have barned? mustn't he have barned? mustn't we have barned? mustn't you have barned? mustn't they have barned?
Perfeito com V-ing
mustn't I have been barning? mustn't you have been barning? mustn't he have been barning? mustn't we have been barning? mustn't you have been barning? mustn't they have been barning?