must reign
Regular verb: reign - reigned- reigned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?