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