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