I must vibrate you must vibrate he must vibrate we must vibrate you must vibrate they must vibrate
Forme en 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
Perfect
I must have vibrated you must have vibrated he must have vibrated we must have vibrated you must have vibrated they must have vibrated
Perfect en 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
Négation
Forme simple
I must not vibrate you must not vibrate he must not vibrate we must not vibrate you must not vibrate they must not vibrate
Forme en V-ing
I must not be vibrating you must not be vibrating he must not be vibrating we must not be vibrating you must not be vibrating they must not be vibrating
Perfect
I must not have vibrated you must not have vibrated he must not have vibrated we must not have vibrated you must not have vibrated they must not have vibrated
Perfect en V-ing
I must not have been vibrating you must not have been vibrating he must not have been vibrating we must not have been vibrating you must not have been vibrating they must not have been vibrating
Forme interrogative
Forme simple
must I vibrate? must you vibrate? must he vibrate? must we vibrate? must you vibrate? must they vibrate?
Forme en 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?
Perfect
must I have vibrated? must you have vibrated? must he have vibrated? must we have vibrated? must you have vibrated? must they have vibrated?
Perfect en 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?
Forme interro-négative
Forme simple
must I not vibrate? must you not vibrate? must he not vibrate? must we not vibrate? must you not vibrate? must they not vibrate?
Forme en V-ing
must I not be vibrating? must you not be vibrating? must he not be vibrating? must we not be vibrating? must you not be vibrating? must they not be vibrating?
Perfect
must I not have vibrated? must you not have vibrated? must he not have vibrated? must we not have vibrated? must you not have vibrated? must they not have vibrated?
Perfect en V-ing
must I not have been vibrating? must you not have been vibrating? must he not have been vibrating? must we not have been vibrating? must you not have been vibrating? must they not have been vibrating?