must stun
Regular verb: stun - stunned- stunned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must stun
you must stun
she must stun
we must stun
you must stun
they must stun 	I must be stunning
you must be stunning
she must be stunning
we must be stunning
you must be stunning
they must be stunning	I must have stunned
you must have stunned
she 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
she 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
she 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
she 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
she 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
she 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 she stun?
must we stun?
must you stun?
must they stun? 	must I be stunning?
must you be stunning?
must she be stunning?
must we be stunning?
must you be stunning?
must they be stunning? 	must I have stunned?
must you have stunned?
must she 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 she 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 she 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 she 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 she 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 she have been stunning?
mustn't we have been stunning?
mustn't you have been stunning?
mustn't they have been stunning?