must pettifog
Regular verb: pettifog - pettifoged- pettifoged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must pettifog
you must pettifog
he must pettifog
we must pettifog
you must pettifog
they must pettifog 	I must be pettifoging
you must be pettifoging
he must be pettifoging
we must be pettifoging
you must be pettifoging
they must be pettifoging	I must have pettifoged
you must have pettifoged
he must have pettifoged
we must have pettifoged
you must have pettifoged
they must have pettifoged	I must have been pettifoging
you must have been pettifoging
he must have been pettifoging
we must have been pettifoging
you must have been pettifoging
they must have been pettifoging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't pettifog
you mustn't pettifog
he mustn't pettifog
we mustn't pettifog
you mustn't pettifog
they mustn't pettifog 	I mustn't be pettifoging
you mustn't be pettifoging
he mustn't be pettifoging
we mustn't be pettifoging
you mustn't be pettifoging
they mustn't be pettifoging	I mustn't have pettifoged
you mustn't have pettifoged
he mustn't have pettifoged
we mustn't have pettifoged
you mustn't have pettifoged
they mustn't have pettifoged	I mustn't have been pettifoging
you mustn't have been pettifoging
he mustn't have been pettifoging
we mustn't have been pettifoging
you mustn't have been pettifoging
they mustn't have been pettifoging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I pettifog?
must you pettifog?
must he pettifog?
must we pettifog?
must you pettifog?
must they pettifog? 	must I be pettifoging?
must you be pettifoging?
must he be pettifoging?
must we be pettifoging?
must you be pettifoging?
must they be pettifoging? 	must I have pettifoged?
must you have pettifoged?
must he have pettifoged?
must we have pettifoged?
must you have pettifoged?
must they have pettifoged? 	must I have been pettifoging?
must you have been pettifoging?
must he have been pettifoging?
must we have been pettifoging?
must you have been pettifoging?
must they have been pettifoging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I pettifog?
mustn't you pettifog?
mustn't he pettifog?
mustn't we pettifog?
mustn't you pettifog?
mustn't they pettifog? 	mustn't I be pettifoging?
mustn't you be pettifoging?
mustn't he be pettifoging?
mustn't we be pettifoging?
mustn't you be pettifoging?
mustn't they be pettifoging? 	mustn't I have pettifoged?
mustn't you have pettifoged?
mustn't he have pettifoged?
mustn't we have pettifoged?
mustn't you have pettifoged?
mustn't they have pettifoged? 	mustn't I have been pettifoging?
mustn't you have been pettifoging?
mustn't he have been pettifoging?
mustn't we have been pettifoging?
mustn't you have been pettifoging?
mustn't they have been pettifoging?