I must prosecute you must prosecute she must prosecute we must prosecute you must prosecute they must prosecute
V-ing form
I must be prosecuting you must be prosecuting she must be prosecuting we must be prosecuting you must be prosecuting they must be prosecuting
Perfect
I must have prosecuted you must have prosecuted she must have prosecuted we must have prosecuted you must have prosecuted they must have prosecuted
V-ing perfect
I must have been prosecuting you must have been prosecuting she must have been prosecuting we must have been prosecuting you must have been prosecuting they must have been prosecuting
Negation
Simple form
I mustn't prosecute you mustn't prosecute she mustn't prosecute we mustn't prosecute you mustn't prosecute they mustn't prosecute
V-ing form
I mustn't be prosecuting you mustn't be prosecuting she mustn't be prosecuting we mustn't be prosecuting you mustn't be prosecuting they mustn't be prosecuting
Perfect
I mustn't have prosecuted you mustn't have prosecuted she mustn't have prosecuted we mustn't have prosecuted you mustn't have prosecuted they mustn't have prosecuted
V-ing perfect
I mustn't have been prosecuting you mustn't have been prosecuting she mustn't have been prosecuting we mustn't have been prosecuting you mustn't have been prosecuting they mustn't have been prosecuting
Interrogative form
Simple form
must I prosecute? must you prosecute? must she prosecute? must we prosecute? must you prosecute? must they prosecute?
V-ing form
must I be prosecuting? must you be prosecuting? must she be prosecuting? must we be prosecuting? must you be prosecuting? must they be prosecuting?
Perfect
must I have prosecuted? must you have prosecuted? must she have prosecuted? must we have prosecuted? must you have prosecuted? must they have prosecuted?
V-ing perfect
must I have been prosecuting? must you have been prosecuting? must she have been prosecuting? must we have been prosecuting? must you have been prosecuting? must they have been prosecuting?
Interro-negative form
Simple form
mustn't I prosecute? mustn't you prosecute? mustn't she prosecute? mustn't we prosecute? mustn't you prosecute? mustn't they prosecute?
V-ing form
mustn't I be prosecuting? mustn't you be prosecuting? mustn't she be prosecuting? mustn't we be prosecuting? mustn't you be prosecuting? mustn't they be prosecuting?
Perfect
mustn't I have prosecuted? mustn't you have prosecuted? mustn't she have prosecuted? mustn't we have prosecuted? mustn't you have prosecuted? mustn't they have prosecuted?
V-ing perfect
mustn't I have been prosecuting? mustn't you have been prosecuting? mustn't she have been prosecuting? mustn't we have been prosecuting? mustn't you have been prosecuting? mustn't they have been prosecuting?