I must snuff you must snuff he must snuff we must snuff you must snuff they must snuff
Forma con V-ing
I must be snuffing you must be snuffing he must be snuffing we must be snuffing you must be snuffing they must be snuffing
Perfecto
I must have snuffed you must have snuffed he must have snuffed we must have snuffed you must have snuffed they must have snuffed
Perfecto con V-ing
I must have been snuffing you must have been snuffing he must have been snuffing we must have been snuffing you must have been snuffing they must have been snuffing
Negación
Forma simple
I must not snuff you must not snuff he must not snuff we must not snuff you must not snuff they must not snuff
Forma con V-ing
I must not be snuffing you must not be snuffing he must not be snuffing we must not be snuffing you must not be snuffing they must not be snuffing
Perfecto
I must not have snuffed you must not have snuffed he must not have snuffed we must not have snuffed you must not have snuffed they must not have snuffed
Perfecto con V-ing
I must not have been snuffing you must not have been snuffing he must not have been snuffing we must not have been snuffing you must not have been snuffing they must not have been snuffing
Forma interrogativa
Forma simple
must I snuff? must you snuff? must he snuff? must we snuff? must you snuff? must they snuff?
Forma con V-ing
must I be snuffing? must you be snuffing? must he be snuffing? must we be snuffing? must you be snuffing? must they be snuffing?
Perfecto
must I have snuffed? must you have snuffed? must he have snuffed? must we have snuffed? must you have snuffed? must they have snuffed?
Perfecto con V-ing
must I have been snuffing? must you have been snuffing? must he have been snuffing? must we have been snuffing? must you have been snuffing? must they have been snuffing?
Forma interro-negativa
Forma simple
must I not snuff? must you not snuff? must he not snuff? must we not snuff? must you not snuff? must they not snuff?
Forma con V-ing
must I not be snuffing? must you not be snuffing? must he not be snuffing? must we not be snuffing? must you not be snuffing? must they not be snuffing?
Perfecto
must I not have snuffed? must you not have snuffed? must he not have snuffed? must we not have snuffed? must you not have snuffed? must they not have snuffed?
Perfecto con V-ing
must I not have been snuffing? must you not have been snuffing? must he not have been snuffing? must we not have been snuffing? must you not have been snuffing? must they not have been snuffing?