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