I must recalculate you must recalculate he must recalculate we must recalculate you must recalculate they must recalculate
V-ing form
I must be recalculating you must be recalculating he must be recalculating we must be recalculating you must be recalculating they must be recalculating
Perfect
I must have recalculated you must have recalculated he must have recalculated we must have recalculated you must have recalculated they must have recalculated
V-ing perfect
I must have been recalculating you must have been recalculating he must have been recalculating we must have been recalculating you must have been recalculating they must have been recalculating
Negation
Simple form
I mustn't recalculate you mustn't recalculate he mustn't recalculate we mustn't recalculate you mustn't recalculate they mustn't recalculate
V-ing form
I mustn't be recalculating you mustn't be recalculating he mustn't be recalculating we mustn't be recalculating you mustn't be recalculating they mustn't be recalculating
Perfect
I mustn't have recalculated you mustn't have recalculated he mustn't have recalculated we mustn't have recalculated you mustn't have recalculated they mustn't have recalculated
V-ing perfect
I mustn't have been recalculating you mustn't have been recalculating he mustn't have been recalculating we mustn't have been recalculating you mustn't have been recalculating they mustn't have been recalculating
Interrogative form
Simple form
must I recalculate? must you recalculate? must he recalculate? must we recalculate? must you recalculate? must they recalculate?
V-ing form
must I be recalculating? must you be recalculating? must he be recalculating? must we be recalculating? must you be recalculating? must they be recalculating?
Perfect
must I have recalculated? must you have recalculated? must he have recalculated? must we have recalculated? must you have recalculated? must they have recalculated?
V-ing perfect
must I have been recalculating? must you have been recalculating? must he have been recalculating? must we have been recalculating? must you have been recalculating? must they have been recalculating?
Interro-negative form
Simple form
mustn't I recalculate? mustn't you recalculate? mustn't he recalculate? mustn't we recalculate? mustn't you recalculate? mustn't they recalculate?
V-ing form
mustn't I be recalculating? mustn't you be recalculating? mustn't he be recalculating? mustn't we be recalculating? mustn't you be recalculating? mustn't they be recalculating?
Perfect
mustn't I have recalculated? mustn't you have recalculated? mustn't he have recalculated? mustn't we have recalculated? mustn't you have recalculated? mustn't they have recalculated?
V-ing perfect
mustn't I have been recalculating? mustn't you have been recalculating? mustn't he have been recalculating? mustn't we have been recalculating? mustn't you have been recalculating? mustn't they have been recalculating?