I must up you must up he must up we must up you must up they must up
Forma con V-ing
I must be upping you must be upping he must be upping we must be upping you must be upping they must be upping
Perfecto
I must have upped you must have upped he must have upped we must have upped you must have upped they must have upped
Perfecto con V-ing
I must have been upping you must have been upping he must have been upping we must have been upping you must have been upping they must have been upping
Negación
Forma simple
I must not up you must not up he must not up we must not up you must not up they must not up
Forma con V-ing
I must not be upping you must not be upping he must not be upping we must not be upping you must not be upping they must not be upping
Perfecto
I must not have upped you must not have upped he must not have upped we must not have upped you must not have upped they must not have upped
Perfecto con V-ing
I must not have been upping you must not have been upping he must not have been upping we must not have been upping you must not have been upping they must not have been upping
Forma interrogativa
Forma simple
must I up? must you up? must he up? must we up? must you up? must they up?
Forma con V-ing
must I be upping? must you be upping? must he be upping? must we be upping? must you be upping? must they be upping?
Perfecto
must I have upped? must you have upped? must he have upped? must we have upped? must you have upped? must they have upped?
Perfecto con V-ing
must I have been upping? must you have been upping? must he have been upping? must we have been upping? must you have been upping? must they have been upping?
Forma interro-negativa
Forma simple
must I not up? must you not up? must he not up? must we not up? must you not up? must they not up?
Forma con V-ing
must I not be upping? must you not be upping? must he not be upping? must we not be upping? must you not be upping? must they not be upping?
Perfecto
must I not have upped? must you not have upped? must he not have upped? must we not have upped? must you not have upped? must they not have upped?
Perfecto con V-ing
must I not have been upping? must you not have been upping? must he not have been upping? must we not have been upping? must you not have been upping? must they not have been upping?