I must botanize you must botanize he must botanize we must botanize you must botanize they must botanize
Forme en V-ing
I must be botanizing you must be botanizing he must be botanizing we must be botanizing you must be botanizing they must be botanizing
Perfect
I must have botanized you must have botanized he must have botanized we must have botanized you must have botanized they must have botanized
Perfect en V-ing
I must have been botanizing you must have been botanizing he must have been botanizing we must have been botanizing you must have been botanizing they must have been botanizing
Négation
Forme simple
I mustn't botanize you mustn't botanize he mustn't botanize we mustn't botanize you mustn't botanize they mustn't botanize
Forme en V-ing
I mustn't be botanizing you mustn't be botanizing he mustn't be botanizing we mustn't be botanizing you mustn't be botanizing they mustn't be botanizing
Perfect
I mustn't have botanized you mustn't have botanized he mustn't have botanized we mustn't have botanized you mustn't have botanized they mustn't have botanized
Perfect en V-ing
I mustn't have been botanizing you mustn't have been botanizing he mustn't have been botanizing we mustn't have been botanizing you mustn't have been botanizing they mustn't have been botanizing
Forme interrogative
Forme simple
must I botanize? must you botanize? must he botanize? must we botanize? must you botanize? must they botanize?
Forme en V-ing
must I be botanizing? must you be botanizing? must he be botanizing? must we be botanizing? must you be botanizing? must they be botanizing?
Perfect
must I have botanized? must you have botanized? must he have botanized? must we have botanized? must you have botanized? must they have botanized?
Perfect en V-ing
must I have been botanizing? must you have been botanizing? must he have been botanizing? must we have been botanizing? must you have been botanizing? must they have been botanizing?
Forme interro-négative
Forme simple
mustn't I botanize? mustn't you botanize? mustn't he botanize? mustn't we botanize? mustn't you botanize? mustn't they botanize?
Forme en V-ing
mustn't I be botanizing? mustn't you be botanizing? mustn't he be botanizing? mustn't we be botanizing? mustn't you be botanizing? mustn't they be botanizing?
Perfect
mustn't I have botanized? mustn't you have botanized? mustn't he have botanized? mustn't we have botanized? mustn't you have botanized? mustn't they have botanized?
Perfect en V-ing
mustn't I have been botanizing? mustn't you have been botanizing? mustn't he have been botanizing? mustn't we have been botanizing? mustn't you have been botanizing? mustn't they have been botanizing?