must haunt
Regular verb: haunt - haunted- haunted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must haunt
you must haunt
he must haunt
we must haunt
you must haunt
they must haunt 	I must be haunting
you must be haunting
he must be haunting
we must be haunting
you must be haunting
they must be haunting	I must have haunted
you must have haunted
he must have haunted
we must have haunted
you must have haunted
they must have haunted	I must have been haunting
you must have been haunting
he must have been haunting
we must have been haunting
you must have been haunting
they must have been haunting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't haunt
you mustn't haunt
he mustn't haunt
we mustn't haunt
you mustn't haunt
they mustn't haunt 	I mustn't be haunting
you mustn't be haunting
he mustn't be haunting
we mustn't be haunting
you mustn't be haunting
they mustn't be haunting	I mustn't have haunted
you mustn't have haunted
he mustn't have haunted
we mustn't have haunted
you mustn't have haunted
they mustn't have haunted	I mustn't have been haunting
you mustn't have been haunting
he mustn't have been haunting
we mustn't have been haunting
you mustn't have been haunting
they mustn't have been haunting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I haunt?
must you haunt?
must he haunt?
must we haunt?
must you haunt?
must they haunt? 	must I be haunting?
must you be haunting?
must he be haunting?
must we be haunting?
must you be haunting?
must they be haunting? 	must I have haunted?
must you have haunted?
must he have haunted?
must we have haunted?
must you have haunted?
must they have haunted? 	must I have been haunting?
must you have been haunting?
must he have been haunting?
must we have been haunting?
must you have been haunting?
must they have been haunting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I haunt?
mustn't you haunt?
mustn't he haunt?
mustn't we haunt?
mustn't you haunt?
mustn't they haunt? 	mustn't I be haunting?
mustn't you be haunting?
mustn't he be haunting?
mustn't we be haunting?
mustn't you be haunting?
mustn't they be haunting? 	mustn't I have haunted?
mustn't you have haunted?
mustn't he have haunted?
mustn't we have haunted?
mustn't you have haunted?
mustn't they have haunted? 	mustn't I have been haunting?
mustn't you have been haunting?
mustn't he have been haunting?
mustn't we have been haunting?
mustn't you have been haunting?
mustn't they have been haunting?