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 must not shudder you must not shudder he must not shudder we must not shudder you must not shudder they must not shudder
Forma con V-ing
I must not be shuddering you must not be shuddering he must not be shuddering we must not be shuddering you must not be shuddering they must not be shuddering
Perfecto
I must not have shuddered you must not have shuddered he must not have shuddered we must not have shuddered you must not have shuddered they must not have shuddered
Perfecto con V-ing
I must not have been shuddering you must not have been shuddering he must not have been shuddering we must not have been shuddering you must not have been shuddering they must not 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
must I not shudder? must you not shudder? must he not shudder? must we not shudder? must you not shudder? must they not shudder?
Forma con V-ing
must I not be shuddering? must you not be shuddering? must he not be shuddering? must we not be shuddering? must you not be shuddering? must they not be shuddering?
Perfecto
must I not have shuddered? must you not have shuddered? must he not have shuddered? must we not have shuddered? must you not have shuddered? must they not have shuddered?
Perfecto con V-ing
must I not have been shuddering? must you not have been shuddering? must he not have been shuddering? must we not have been shuddering? must you not have been shuddering? must they not have been shuddering?