I must splutter you must splutter he must splutter we must splutter you must splutter they must splutter
Forma con V-ing
I must be spluttering you must be spluttering he must be spluttering we must be spluttering you must be spluttering they must be spluttering
Perfecto
I must have spluttered you must have spluttered he must have spluttered we must have spluttered you must have spluttered they must have spluttered
Perfecto con V-ing
I must have been spluttering you must have been spluttering he must have been spluttering we must have been spluttering you must have been spluttering they must have been spluttering
Negación
Forma simple
I must not splutter you must not splutter he must not splutter we must not splutter you must not splutter they must not splutter
Forma con V-ing
I must not be spluttering you must not be spluttering he must not be spluttering we must not be spluttering you must not be spluttering they must not be spluttering
Perfecto
I must not have spluttered you must not have spluttered he must not have spluttered we must not have spluttered you must not have spluttered they must not have spluttered
Perfecto con V-ing
I must not have been spluttering you must not have been spluttering he must not have been spluttering we must not have been spluttering you must not have been spluttering they must not have been spluttering
Forma interrogativa
Forma simple
must I splutter? must you splutter? must he splutter? must we splutter? must you splutter? must they splutter?
Forma con V-ing
must I be spluttering? must you be spluttering? must he be spluttering? must we be spluttering? must you be spluttering? must they be spluttering?
Perfecto
must I have spluttered? must you have spluttered? must he have spluttered? must we have spluttered? must you have spluttered? must they have spluttered?
Perfecto con V-ing
must I have been spluttering? must you have been spluttering? must he have been spluttering? must we have been spluttering? must you have been spluttering? must they have been spluttering?
Forma interro-negativa
Forma simple
must I not splutter? must you not splutter? must he not splutter? must we not splutter? must you not splutter? must they not splutter?
Forma con V-ing
must I not be spluttering? must you not be spluttering? must he not be spluttering? must we not be spluttering? must you not be spluttering? must they not be spluttering?
Perfecto
must I not have spluttered? must you not have spluttered? must he not have spluttered? must we not have spluttered? must you not have spluttered? must they not have spluttered?
Perfecto con V-ing
must I not have been spluttering? must you not have been spluttering? must he not have been spluttering? must we not have been spluttering? must you not have been spluttering? must they not have been spluttering?