I must vibrate you must vibrate he must vibrate we must vibrate you must vibrate they must vibrate
Forma con V-ing
I must be vibrating you must be vibrating he must be vibrating we must be vibrating you must be vibrating they must be vibrating
Perfetto
I must have vibrated you must have vibrated he must have vibrated we must have vibrated you must have vibrated they must have vibrated
Perfetto con V-ing
I must have been vibrating you must have been vibrating he must have been vibrating we must have been vibrating you must have been vibrating they must have been vibrating
Negazione
Forma semplice
I mustn't vibrate you mustn't vibrate he mustn't vibrate we mustn't vibrate you mustn't vibrate they mustn't vibrate
Forma con V-ing
I mustn't be vibrating you mustn't be vibrating he mustn't be vibrating we mustn't be vibrating you mustn't be vibrating they mustn't be vibrating
Perfetto
I mustn't have vibrated you mustn't have vibrated he mustn't have vibrated we mustn't have vibrated you mustn't have vibrated they mustn't have vibrated
Perfetto con V-ing
I mustn't have been vibrating you mustn't have been vibrating he mustn't have been vibrating we mustn't have been vibrating you mustn't have been vibrating they mustn't have been vibrating
Forma interrogativa
Forma semplice
must I vibrate? must you vibrate? must he vibrate? must we vibrate? must you vibrate? must they vibrate?
Forma con V-ing
must I be vibrating? must you be vibrating? must he be vibrating? must we be vibrating? must you be vibrating? must they be vibrating?
Perfetto
must I have vibrated? must you have vibrated? must he have vibrated? must we have vibrated? must you have vibrated? must they have vibrated?
Perfetto con V-ing
must I have been vibrating? must you have been vibrating? must he have been vibrating? must we have been vibrating? must you have been vibrating? must they have been vibrating?
Forma interro-negativa
Forma semplice
mustn't I vibrate? mustn't you vibrate? mustn't he vibrate? mustn't we vibrate? mustn't you vibrate? mustn't they vibrate?
Forma con V-ing
mustn't I be vibrating? mustn't you be vibrating? mustn't he be vibrating? mustn't we be vibrating? mustn't you be vibrating? mustn't they be vibrating?
Perfetto
mustn't I have vibrated? mustn't you have vibrated? mustn't he have vibrated? mustn't we have vibrated? mustn't you have vibrated? mustn't they have vibrated?
Perfetto con V-ing
mustn't I have been vibrating? mustn't you have been vibrating? mustn't he have been vibrating? mustn't we have been vibrating? mustn't you have been vibrating? mustn't they have been vibrating?