I must surname you must surname he must surname we must surname you must surname they must surname
Forma com V-ing
I must be surnaming you must be surnaming he must be surnaming we must be surnaming you must be surnaming they must be surnaming
Perfeito
I must have surnamed you must have surnamed he must have surnamed we must have surnamed you must have surnamed they must have surnamed
Perfeito com V-ing
I must have been surnaming you must have been surnaming he must have been surnaming we must have been surnaming you must have been surnaming they must have been surnaming
Negação
Forma simple
I must not surname you must not surname he must not surname we must not surname you must not surname they must not surname
Forma com V-ing
I must not be surnaming you must not be surnaming he must not be surnaming we must not be surnaming you must not be surnaming they must not be surnaming
Perfeito
I must not have surnamed you must not have surnamed he must not have surnamed we must not have surnamed you must not have surnamed they must not have surnamed
Perfeito com V-ing
I must not have been surnaming you must not have been surnaming he must not have been surnaming we must not have been surnaming you must not have been surnaming they must not have been surnaming
Forma interrogativa
Forma simple
must I surname? must you surname? must he surname? must we surname? must you surname? must they surname?
Forma com V-ing
must I be surnaming? must you be surnaming? must he be surnaming? must we be surnaming? must you be surnaming? must they be surnaming?
Perfeito
must I have surnamed? must you have surnamed? must he have surnamed? must we have surnamed? must you have surnamed? must they have surnamed?
Perfeito com V-ing
must I have been surnaming? must you have been surnaming? must he have been surnaming? must we have been surnaming? must you have been surnaming? must they have been surnaming?
Forma interro-Negação
Forma simple
must I not surname? must you not surname? must he not surname? must we not surname? must you not surname? must they not surname?
Forma com V-ing
must I not be surnaming? must you not be surnaming? must he not be surnaming? must we not be surnaming? must you not be surnaming? must they not be surnaming?
Perfeito
must I not have surnamed? must you not have surnamed? must he not have surnamed? must we not have surnamed? must you not have surnamed? must they not have surnamed?
Perfeito com V-ing
must I not have been surnaming? must you not have been surnaming? must he not have been surnaming? must we not have been surnaming? must you not have been surnaming? must they not have been surnaming?