must haggle
Regular verb: haggle - haggled- haggled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must haggle
you must haggle
she must haggle
we must haggle
you must haggle
they must haggle 	I must be haggling
you must be haggling
she must be haggling
we must be haggling
you must be haggling
they must be haggling	I must have haggled
you must have haggled
she must have haggled
we must have haggled
you must have haggled
they must have haggled	I must have been haggling
you must have been haggling
she must have been haggling
we must have been haggling
you must have been haggling
they must have been haggling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't haggle
you mustn't haggle
she mustn't haggle
we mustn't haggle
you mustn't haggle
they mustn't haggle 	I mustn't be haggling
you mustn't be haggling
she mustn't be haggling
we mustn't be haggling
you mustn't be haggling
they mustn't be haggling	I mustn't have haggled
you mustn't have haggled
she mustn't have haggled
we mustn't have haggled
you mustn't have haggled
they mustn't have haggled	I mustn't have been haggling
you mustn't have been haggling
she mustn't have been haggling
we mustn't have been haggling
you mustn't have been haggling
they mustn't have been haggling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I haggle?
must you haggle?
must she haggle?
must we haggle?
must you haggle?
must they haggle? 	must I be haggling?
must you be haggling?
must she be haggling?
must we be haggling?
must you be haggling?
must they be haggling? 	must I have haggled?
must you have haggled?
must she have haggled?
must we have haggled?
must you have haggled?
must they have haggled? 	must I have been haggling?
must you have been haggling?
must she have been haggling?
must we have been haggling?
must you have been haggling?
must they have been haggling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I haggle?
mustn't you haggle?
mustn't she haggle?
mustn't we haggle?
mustn't you haggle?
mustn't they haggle? 	mustn't I be haggling?
mustn't you be haggling?
mustn't she be haggling?
mustn't we be haggling?
mustn't you be haggling?
mustn't they be haggling? 	mustn't I have haggled?
mustn't you have haggled?
mustn't she have haggled?
mustn't we have haggled?
mustn't you have haggled?
mustn't they have haggled? 	mustn't I have been haggling?
mustn't you have been haggling?
mustn't she have been haggling?
mustn't we have been haggling?
mustn't you have been haggling?
mustn't they have been haggling?