must stun
Regular verb: stun - stunned- stunned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must stun
you must stun
he must stun
we must stun
you must stun
they must stun 	I must be stunning
you must be stunning
he must be stunning
we must be stunning
you must be stunning
they must be stunning	I must have stunned
you must have stunned
he must have stunned
we must have stunned
you must have stunned
they must have stunned	I must have been stunning
you must have been stunning
he must have been stunning
we must have been stunning
you must have been stunning
they must have been stunning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't stun
you mustn't stun
he mustn't stun
we mustn't stun
you mustn't stun
they mustn't stun 	I mustn't be stunning
you mustn't be stunning
he mustn't be stunning
we mustn't be stunning
you mustn't be stunning
they mustn't be stunning	I mustn't have stunned
you mustn't have stunned
he mustn't have stunned
we mustn't have stunned
you mustn't have stunned
they mustn't have stunned	I mustn't have been stunning
you mustn't have been stunning
he mustn't have been stunning
we mustn't have been stunning
you mustn't have been stunning
they mustn't have been stunning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I stun?
must you stun?
must he stun?
must we stun?
must you stun?
must they stun? 	must I be stunning?
must you be stunning?
must he be stunning?
must we be stunning?
must you be stunning?
must they be stunning? 	must I have stunned?
must you have stunned?
must he have stunned?
must we have stunned?
must you have stunned?
must they have stunned? 	must I have been stunning?
must you have been stunning?
must he have been stunning?
must we have been stunning?
must you have been stunning?
must they have been stunning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I stun?
mustn't you stun?
mustn't he stun?
mustn't we stun?
mustn't you stun?
mustn't they stun? 	mustn't I be stunning?
mustn't you be stunning?
mustn't he be stunning?
mustn't we be stunning?
mustn't you be stunning?
mustn't they be stunning? 	mustn't I have stunned?
mustn't you have stunned?
mustn't he have stunned?
mustn't we have stunned?
mustn't you have stunned?
mustn't they have stunned? 	mustn't I have been stunning?
mustn't you have been stunning?
mustn't he have been stunning?
mustn't we have been stunning?
mustn't you have been stunning?
mustn't they have been stunning?