I must steam you must steam he must steam we must steam you must steam they must steam
Forma com V-ing
I must be steaming you must be steaming he must be steaming we must be steaming you must be steaming they must be steaming
Perfeito
I must have steamed you must have steamed he must have steamed we must have steamed you must have steamed they must have steamed
Perfeito com V-ing
I must have been steaming you must have been steaming he must have been steaming we must have been steaming you must have been steaming they must have been steaming
Negação
Forma simple
I must not steam you must not steam he must not steam we must not steam you must not steam they must not steam
Forma com V-ing
I must not be steaming you must not be steaming he must not be steaming we must not be steaming you must not be steaming they must not be steaming
Perfeito
I must not have steamed you must not have steamed he must not have steamed we must not have steamed you must not have steamed they must not have steamed
Perfeito com V-ing
I must not have been steaming you must not have been steaming he must not have been steaming we must not have been steaming you must not have been steaming they must not have been steaming
Forma interrogativa
Forma simple
must I steam? must you steam? must he steam? must we steam? must you steam? must they steam?
Forma com V-ing
must I be steaming? must you be steaming? must he be steaming? must we be steaming? must you be steaming? must they be steaming?
Perfeito
must I have steamed? must you have steamed? must he have steamed? must we have steamed? must you have steamed? must they have steamed?
Perfeito com V-ing
must I have been steaming? must you have been steaming? must he have been steaming? must we have been steaming? must you have been steaming? must they have been steaming?
Forma interro-Negação
Forma simple
must I not steam? must you not steam? must he not steam? must we not steam? must you not steam? must they not steam?
Forma com V-ing
must I not be steaming? must you not be steaming? must he not be steaming? must we not be steaming? must you not be steaming? must they not be steaming?
Perfeito
must I not have steamed? must you not have steamed? must he not have steamed? must we not have steamed? must you not have steamed? must they not have steamed?
Perfeito com V-ing
must I not have been steaming? must you not have been steaming? must he not have been steaming? must we not have been steaming? must you not have been steaming? must they not have been steaming?