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