Attention, ce verbe peut ne pas exister, la conjugaison est donnée à titre d'exemple.
Affirmation
Forme simple
I must enthusiasm you must enthusiasm he must enthusiasm we must enthusiasm you must enthusiasm they must enthusiasm
Forme en V-ing
I must be enthusiasming you must be enthusiasming he must be enthusiasming we must be enthusiasming you must be enthusiasming they must be enthusiasming
Perfect
I must have enthusiasmed you must have enthusiasmed he must have enthusiasmed we must have enthusiasmed you must have enthusiasmed they must have enthusiasmed
Perfect en V-ing
I must have been enthusiasming you must have been enthusiasming he must have been enthusiasming we must have been enthusiasming you must have been enthusiasming they must have been enthusiasming
Négation
Forme simple
I mustn't enthusiasm you mustn't enthusiasm he mustn't enthusiasm we mustn't enthusiasm you mustn't enthusiasm they mustn't enthusiasm
Forme en V-ing
I mustn't be enthusiasming you mustn't be enthusiasming he mustn't be enthusiasming we mustn't be enthusiasming you mustn't be enthusiasming they mustn't be enthusiasming
Perfect
I mustn't have enthusiasmed you mustn't have enthusiasmed he mustn't have enthusiasmed we mustn't have enthusiasmed you mustn't have enthusiasmed they mustn't have enthusiasmed
Perfect en V-ing
I mustn't have been enthusiasming you mustn't have been enthusiasming he mustn't have been enthusiasming we mustn't have been enthusiasming you mustn't have been enthusiasming they mustn't have been enthusiasming
Forme interrogative
Forme simple
must I enthusiasm? must you enthusiasm? must he enthusiasm? must we enthusiasm? must you enthusiasm? must they enthusiasm?
Forme en V-ing
must I be enthusiasming? must you be enthusiasming? must he be enthusiasming? must we be enthusiasming? must you be enthusiasming? must they be enthusiasming?
Perfect
must I have enthusiasmed? must you have enthusiasmed? must he have enthusiasmed? must we have enthusiasmed? must you have enthusiasmed? must they have enthusiasmed?
Perfect en V-ing
must I have been enthusiasming? must you have been enthusiasming? must he have been enthusiasming? must we have been enthusiasming? must you have been enthusiasming? must they have been enthusiasming?
Forme interro-négative
Forme simple
mustn't I enthusiasm? mustn't you enthusiasm? mustn't he enthusiasm? mustn't we enthusiasm? mustn't you enthusiasm? mustn't they enthusiasm?
Forme en V-ing
mustn't I be enthusiasming? mustn't you be enthusiasming? mustn't he be enthusiasming? mustn't we be enthusiasming? mustn't you be enthusiasming? mustn't they be enthusiasming?
Perfect
mustn't I have enthusiasmed? mustn't you have enthusiasmed? mustn't he have enthusiasmed? mustn't we have enthusiasmed? mustn't you have enthusiasmed? mustn't they have enthusiasmed?
Perfect en V-ing
mustn't I have been enthusiasming? mustn't you have been enthusiasming? mustn't he have been enthusiasming? mustn't we have been enthusiasming? mustn't you have been enthusiasming? mustn't they have been enthusiasming?