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