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