I must supersede you must supersede she must supersede we must supersede you must supersede they must supersede
Forme en V-ing
I must be superseding you must be superseding she must be superseding we must be superseding you must be superseding they must be superseding
Perfect
I must have superseded you must have superseded she must have superseded we must have superseded you must have superseded they must have superseded
Perfect en V-ing
I must have been superseding you must have been superseding she must have been superseding we must have been superseding you must have been superseding they must have been superseding
Négation
Forme simple
I mustn't supersede you mustn't supersede she mustn't supersede we mustn't supersede you mustn't supersede they mustn't supersede
Forme en V-ing
I mustn't be superseding you mustn't be superseding she mustn't be superseding we mustn't be superseding you mustn't be superseding they mustn't be superseding
Perfect
I mustn't have superseded you mustn't have superseded she mustn't have superseded we mustn't have superseded you mustn't have superseded they mustn't have superseded
Perfect en V-ing
I mustn't have been superseding you mustn't have been superseding she mustn't have been superseding we mustn't have been superseding you mustn't have been superseding they mustn't have been superseding
Forme interrogative
Forme simple
must I supersede? must you supersede? must she supersede? must we supersede? must you supersede? must they supersede?
Forme en V-ing
must I be superseding? must you be superseding? must she be superseding? must we be superseding? must you be superseding? must they be superseding?
Perfect
must I have superseded? must you have superseded? must she have superseded? must we have superseded? must you have superseded? must they have superseded?
Perfect en V-ing
must I have been superseding? must you have been superseding? must she have been superseding? must we have been superseding? must you have been superseding? must they have been superseding?
Forme interro-négative
Forme simple
mustn't I supersede? mustn't you supersede? mustn't she supersede? mustn't we supersede? mustn't you supersede? mustn't they supersede?
Forme en V-ing
mustn't I be superseding? mustn't you be superseding? mustn't she be superseding? mustn't we be superseding? mustn't you be superseding? mustn't they be superseding?
Perfect
mustn't I have superseded? mustn't you have superseded? mustn't she have superseded? mustn't we have superseded? mustn't you have superseded? mustn't they have superseded?
Perfect en V-ing
mustn't I have been superseding? mustn't you have been superseding? mustn't she have been superseding? mustn't we have been superseding? mustn't you have been superseding? mustn't they have been superseding?