I must stanch you must stanch he must stanch we must stanch you must stanch they must stanch
Forma con V-ing
I must be stanching you must be stanching he must be stanching we must be stanching you must be stanching they must be stanching
Perfecto
I must have stanched you must have stanched he must have stanched we must have stanched you must have stanched they must have stanched
Perfecto con V-ing
I must have been stanching you must have been stanching he must have been stanching we must have been stanching you must have been stanching they must have been stanching
Negación
Forma simple
I must not stanch you must not stanch he must not stanch we must not stanch you must not stanch they must not stanch
Forma con V-ing
I must not be stanching you must not be stanching he must not be stanching we must not be stanching you must not be stanching they must not be stanching
Perfecto
I must not have stanched you must not have stanched he must not have stanched we must not have stanched you must not have stanched they must not have stanched
Perfecto con V-ing
I must not have been stanching you must not have been stanching he must not have been stanching we must not have been stanching you must not have been stanching they must not have been stanching
Forma interrogativa
Forma simple
must I stanch? must you stanch? must he stanch? must we stanch? must you stanch? must they stanch?
Forma con V-ing
must I be stanching? must you be stanching? must he be stanching? must we be stanching? must you be stanching? must they be stanching?
Perfecto
must I have stanched? must you have stanched? must he have stanched? must we have stanched? must you have stanched? must they have stanched?
Perfecto con V-ing
must I have been stanching? must you have been stanching? must he have been stanching? must we have been stanching? must you have been stanching? must they have been stanching?
Forma interro-negativa
Forma simple
must I not stanch? must you not stanch? must he not stanch? must we not stanch? must you not stanch? must they not stanch?
Forma con V-ing
must I not be stanching? must you not be stanching? must he not be stanching? must we not be stanching? must you not be stanching? must they not be stanching?
Perfecto
must I not have stanched? must you not have stanched? must he not have stanched? must we not have stanched? must you not have stanched? must they not have stanched?
Perfecto con V-ing
must I not have been stanching? must you not have been stanching? must he not have been stanching? must we not have been stanching? must you not have been stanching? must they not have been stanching?