I must graft you must graft he must graft we must graft you must graft they must graft
Forma con V-ing
I must be grafting you must be grafting he must be grafting we must be grafting you must be grafting they must be grafting
Perfecto
I must have grafted you must have grafted he must have grafted we must have grafted you must have grafted they must have grafted
Perfecto con V-ing
I must have been grafting you must have been grafting he must have been grafting we must have been grafting you must have been grafting they must have been grafting
Negación
Forma simple
I must not graft you must not graft he must not graft we must not graft you must not graft they must not graft
Forma con V-ing
I must not be grafting you must not be grafting he must not be grafting we must not be grafting you must not be grafting they must not be grafting
Perfecto
I must not have grafted you must not have grafted he must not have grafted we must not have grafted you must not have grafted they must not have grafted
Perfecto con V-ing
I must not have been grafting you must not have been grafting he must not have been grafting we must not have been grafting you must not have been grafting they must not have been grafting
Forma interrogativa
Forma simple
must I graft? must you graft? must he graft? must we graft? must you graft? must they graft?
Forma con V-ing
must I be grafting? must you be grafting? must he be grafting? must we be grafting? must you be grafting? must they be grafting?
Perfecto
must I have grafted? must you have grafted? must he have grafted? must we have grafted? must you have grafted? must they have grafted?
Perfecto con V-ing
must I have been grafting? must you have been grafting? must he have been grafting? must we have been grafting? must you have been grafting? must they have been grafting?
Forma interro-negativa
Forma simple
must I not graft? must you not graft? must he not graft? must we not graft? must you not graft? must they not graft?
Forma con V-ing
must I not be grafting? must you not be grafting? must he not be grafting? must we not be grafting? must you not be grafting? must they not be grafting?
Perfecto
must I not have grafted? must you not have grafted? must he not have grafted? must we not have grafted? must you not have grafted? must they not have grafted?
Perfecto con V-ing
must I not have been grafting? must you not have been grafting? must he not have been grafting? must we not have been grafting? must you not have been grafting? must they not have been grafting?