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