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