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 must not pettifog
you must not pettifog
he must not pettifog
we must not pettifog
you must not pettifog
they must not pettifog 	I must not be pettifoging
you must not be pettifoging
he must not be pettifoging
we must not be pettifoging
you must not be pettifoging
they must not be pettifoging	I must not have pettifoged
you must not have pettifoged
he must not have pettifoged
we must not have pettifoged
you must not have pettifoged
they must not have pettifoged	I must not have been pettifoging
you must not have been pettifoging
he must not have been pettifoging
we must not have been pettifoging
you must not have been pettifoging
they must not 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 	
must I not pettifog?
must you not pettifog?
must he not pettifog?
must we not pettifog?
must you not pettifog?
must they not pettifog? 	must I not be pettifoging?
must you not be pettifoging?
must he not be pettifoging?
must we not be pettifoging?
must you not be pettifoging?
must they not be pettifoging? 	must I not have pettifoged?
must you not have pettifoged?
must he not have pettifoged?
must we not have pettifoged?
must you not have pettifoged?
must they not have pettifoged? 	must I not have been pettifoging?
must you not have been pettifoging?
must he not have been pettifoging?
must we not have been pettifoging?
must you not have been pettifoging?
must they not have been pettifoging?