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