I must flutter you must flutter he must flutter we must flutter you must flutter they must flutter
Forme en V-ing
I must be fluttering you must be fluttering he must be fluttering we must be fluttering you must be fluttering they must be fluttering
Perfect
I must have fluttered you must have fluttered he must have fluttered we must have fluttered you must have fluttered they must have fluttered
Perfect en V-ing
I must have been fluttering you must have been fluttering he must have been fluttering we must have been fluttering you must have been fluttering they must have been fluttering
Négation
Forme simple
I must not flutter you must not flutter he must not flutter we must not flutter you must not flutter they must not flutter
Forme en V-ing
I must not be fluttering you must not be fluttering he must not be fluttering we must not be fluttering you must not be fluttering they must not be fluttering
Perfect
I must not have fluttered you must not have fluttered he must not have fluttered we must not have fluttered you must not have fluttered they must not have fluttered
Perfect en V-ing
I must not have been fluttering you must not have been fluttering he must not have been fluttering we must not have been fluttering you must not have been fluttering they must not have been fluttering
Forme interrogative
Forme simple
must I flutter? must you flutter? must he flutter? must we flutter? must you flutter? must they flutter?
Forme en V-ing
must I be fluttering? must you be fluttering? must he be fluttering? must we be fluttering? must you be fluttering? must they be fluttering?
Perfect
must I have fluttered? must you have fluttered? must he have fluttered? must we have fluttered? must you have fluttered? must they have fluttered?
Perfect en V-ing
must I have been fluttering? must you have been fluttering? must he have been fluttering? must we have been fluttering? must you have been fluttering? must they have been fluttering?
Forme interro-négative
Forme simple
must I not flutter? must you not flutter? must he not flutter? must we not flutter? must you not flutter? must they not flutter?
Forme en V-ing
must I not be fluttering? must you not be fluttering? must he not be fluttering? must we not be fluttering? must you not be fluttering? must they not be fluttering?
Perfect
must I not have fluttered? must you not have fluttered? must he not have fluttered? must we not have fluttered? must you not have fluttered? must they not have fluttered?
Perfect en V-ing
must I not have been fluttering? must you not have been fluttering? must he not have been fluttering? must we not have been fluttering? must you not have been fluttering? must they not have been fluttering?