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