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