I must shake you must shake she must shake we must shake you must shake they must shake
Forma con V-ing
I must be shaking you must be shaking she must be shaking we must be shaking you must be shaking they must be shaking
Perfecto
I must have shaken you must have shaken she must have shaken we must have shaken you must have shaken they must have shaken
Perfecto con V-ing
I must have been shaking you must have been shaking she must have been shaking we must have been shaking you must have been shaking they must have been shaking
Negación
Forma simple
I mustn't shake you mustn't shake she mustn't shake we mustn't shake you mustn't shake they mustn't shake
Forma con V-ing
I mustn't be shaking you mustn't be shaking she mustn't be shaking we mustn't be shaking you mustn't be shaking they mustn't be shaking
Perfecto
I mustn't have shaken you mustn't have shaken she mustn't have shaken we mustn't have shaken you mustn't have shaken they mustn't have shaken
Perfecto con V-ing
I mustn't have been shaking you mustn't have been shaking she mustn't have been shaking we mustn't have been shaking you mustn't have been shaking they mustn't have been shaking
Forma interrogativa
Forma simple
must I shake? must you shake? must she shake? must we shake? must you shake? must they shake?
Forma con V-ing
must I be shaking? must you be shaking? must she be shaking? must we be shaking? must you be shaking? must they be shaking?
Perfecto
must I have shaken? must you have shaken? must she have shaken? must we have shaken? must you have shaken? must they have shaken?
Perfecto con V-ing
must I have been shaking? must you have been shaking? must she have been shaking? must we have been shaking? must you have been shaking? must they have been shaking?
Forma interro-negativa
Forma simple
mustn't I shake? mustn't you shake? mustn't she shake? mustn't we shake? mustn't you shake? mustn't they shake?
Forma con V-ing
mustn't I be shaking? mustn't you be shaking? mustn't she be shaking? mustn't we be shaking? mustn't you be shaking? mustn't they be shaking?
Perfecto
mustn't I have shaken? mustn't you have shaken? mustn't she have shaken? mustn't we have shaken? mustn't you have shaken? mustn't they have shaken?
Perfecto con V-ing
mustn't I have been shaking? mustn't you have been shaking? mustn't she have been shaking? mustn't we have been shaking? mustn't you have been shaking? mustn't they have been shaking?