I must burnish you must burnish he must burnish we must burnish you must burnish they must burnish
Forma con V-ing
I must be burnishing you must be burnishing he must be burnishing we must be burnishing you must be burnishing they must be burnishing
Perfecto
I must have burnished you must have burnished he must have burnished we must have burnished you must have burnished they must have burnished
Perfecto con V-ing
I must have been burnishing you must have been burnishing he must have been burnishing we must have been burnishing you must have been burnishing they must have been burnishing
Negación
Forma simple
I mustn't burnish you mustn't burnish he mustn't burnish we mustn't burnish you mustn't burnish they mustn't burnish
Forma con V-ing
I mustn't be burnishing you mustn't be burnishing he mustn't be burnishing we mustn't be burnishing you mustn't be burnishing they mustn't be burnishing
Perfecto
I mustn't have burnished you mustn't have burnished he mustn't have burnished we mustn't have burnished you mustn't have burnished they mustn't have burnished
Perfecto con V-ing
I mustn't have been burnishing you mustn't have been burnishing he mustn't have been burnishing we mustn't have been burnishing you mustn't have been burnishing they mustn't have been burnishing
Forma interrogativa
Forma simple
must I burnish? must you burnish? must he burnish? must we burnish? must you burnish? must they burnish?
Forma con V-ing
must I be burnishing? must you be burnishing? must he be burnishing? must we be burnishing? must you be burnishing? must they be burnishing?
Perfecto
must I have burnished? must you have burnished? must he have burnished? must we have burnished? must you have burnished? must they have burnished?
Perfecto con V-ing
must I have been burnishing? must you have been burnishing? must he have been burnishing? must we have been burnishing? must you have been burnishing? must they have been burnishing?
Forma interro-negativa
Forma simple
mustn't I burnish? mustn't you burnish? mustn't he burnish? mustn't we burnish? mustn't you burnish? mustn't they burnish?
Forma con V-ing
mustn't I be burnishing? mustn't you be burnishing? mustn't he be burnishing? mustn't we be burnishing? mustn't you be burnishing? mustn't they be burnishing?
Perfecto
mustn't I have burnished? mustn't you have burnished? mustn't he have burnished? mustn't we have burnished? mustn't you have burnished? mustn't they have burnished?
Perfecto con V-ing
mustn't I have been burnishing? mustn't you have been burnishing? mustn't he have been burnishing? mustn't we have been burnishing? mustn't you have been burnishing? mustn't they have been burnishing?