English verb conjugation
MUST REIGN

Regular verb: reign - reigned - reigned

Affirmation

Simple form	V-ing form
I must reign you must reign he must reign we must reign you must reign they must reign	I must be reigning you must be reigning he must be reigning we must be reigning you must be reigning they must be reigning
Perfect	V-ing perfect
I must have reigned you must have reigned he must have reigned we must have reigned you must have reigned they must have reigned	I must have been reigning you must have been reigning he must have been reigning we must have been reigning you must have been reigning they must have been reigning

Negation

Simple form	V-ing form
I mustn't reign you mustn't reign he mustn't reign we mustn't reign you mustn't reign they mustn't reign	I mustn't be reigning you mustn't be reigning he mustn't be reigning we mustn't be reigning you mustn't be reigning they mustn't be reigning
Perfect	V-ing perfect
I mustn't have reigned you mustn't have reigned he mustn't have reigned we mustn't have reigned you mustn't have reigned they mustn't have reigned	I mustn't have been reigning you mustn't have been reigning he mustn't have been reigning we mustn't have been reigning you mustn't have been reigning they mustn't have been reigning

Interrogative form

Simple form	V-ing form
must I reign? must you reign? must he reign? must we reign? must you reign? must they reign?	must I be reigning? must you be reigning? must he be reigning? must we be reigning? must you be reigning? must they be reigning?
Perfect	V-ing perfect
must I have reigned? must you have reigned? must he have reigned? must we have reigned? must you have reigned? must they have reigned?	must I have been reigning? must you have been reigning? must he have been reigning? must we have been reigning? must you have been reigning? must they have been reigning?

Interro-negative form

Simple form	V-ing form
mustn't I reign? mustn't you reign? mustn't he reign? mustn't we reign? mustn't you reign? mustn't they reign?	mustn't I be reigning? mustn't you be reigning? mustn't he be reigning? mustn't we be reigning? mustn't you be reigning? mustn't they be reigning?
Perfect	V-ing perfect
mustn't I have reigned? mustn't you have reigned? mustn't he have reigned? mustn't we have reigned? mustn't you have reigned? mustn't they have reigned?	mustn't I have been reigning? mustn't you have been reigning? mustn't he have been reigning? mustn't we have been reigning? mustn't you have been reigning? mustn't they have been reigning?