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