must purse
Regular verb: purse - pursed- pursed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must purse
you must purse
he must purse
we must purse
you must purse
they must purse 	I must be pursing
you must be pursing
he must be pursing
we must be pursing
you must be pursing
they must be pursing	I must have pursed
you must have pursed
he must have pursed
we must have pursed
you must have pursed
they must have pursed	I must have been pursing
you must have been pursing
he must have been pursing
we must have been pursing
you must have been pursing
they must have been pursing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't purse
you mustn't purse
he mustn't purse
we mustn't purse
you mustn't purse
they mustn't purse 	I mustn't be pursing
you mustn't be pursing
he mustn't be pursing
we mustn't be pursing
you mustn't be pursing
they mustn't be pursing	I mustn't have pursed
you mustn't have pursed
he mustn't have pursed
we mustn't have pursed
you mustn't have pursed
they mustn't have pursed	I mustn't have been pursing
you mustn't have been pursing
he mustn't have been pursing
we mustn't have been pursing
you mustn't have been pursing
they mustn't have been pursing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I purse?
must you purse?
must he purse?
must we purse?
must you purse?
must they purse? 	must I be pursing?
must you be pursing?
must he be pursing?
must we be pursing?
must you be pursing?
must they be pursing? 	must I have pursed?
must you have pursed?
must he have pursed?
must we have pursed?
must you have pursed?
must they have pursed? 	must I have been pursing?
must you have been pursing?
must he have been pursing?
must we have been pursing?
must you have been pursing?
must they have been pursing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I purse?
mustn't you purse?
mustn't he purse?
mustn't we purse?
mustn't you purse?
mustn't they purse? 	mustn't I be pursing?
mustn't you be pursing?
mustn't he be pursing?
mustn't we be pursing?
mustn't you be pursing?
mustn't they be pursing? 	mustn't I have pursed?
mustn't you have pursed?
mustn't he have pursed?
mustn't we have pursed?
mustn't you have pursed?
mustn't they have pursed? 	mustn't I have been pursing?
mustn't you have been pursing?
mustn't he have been pursing?
mustn't we have been pursing?
mustn't you have been pursing?
mustn't they have been pursing?