may counterpetition
Regular verb: counterpetition - counterpetitioned- counterpetitioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may counterpetition
you may counterpetition
she may counterpetition
we may counterpetition
you may counterpetition
they may counterpetition 	I may be counterpetitioning
you may be counterpetitioning
she may be counterpetitioning
we may be counterpetitioning
you may be counterpetitioning
they may be counterpetitioning	I may have counterpetitioned
you may have counterpetitioned
she may have counterpetitioned
we may have counterpetitioned
you may have counterpetitioned
they may have counterpetitioned	I may have been counterpetitioning
you may have been counterpetitioning
she may have been counterpetitioning
we may have been counterpetitioning
you may have been counterpetitioning
they may have been counterpetitioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't counterpetition
you mayn't counterpetition
she mayn't counterpetition
we mayn't counterpetition
you mayn't counterpetition
they mayn't counterpetition 	I mayn't be counterpetitioning
you mayn't be counterpetitioning
she mayn't be counterpetitioning
we mayn't be counterpetitioning
you mayn't be counterpetitioning
they mayn't be counterpetitioning	I mayn't have counterpetitioned
you mayn't have counterpetitioned
she mayn't have counterpetitioned
we mayn't have counterpetitioned
you mayn't have counterpetitioned
they mayn't have counterpetitioned	I mayn't have been counterpetitioning
you mayn't have been counterpetitioning
she mayn't have been counterpetitioning
we mayn't have been counterpetitioning
you mayn't have been counterpetitioning
they mayn't have been counterpetitioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I counterpetition?
may you counterpetition?
may she counterpetition?
may we counterpetition?
may you counterpetition?
may they counterpetition? 	may I be counterpetitioning?
may you be counterpetitioning?
may she be counterpetitioning?
may we be counterpetitioning?
may you be counterpetitioning?
may they be counterpetitioning? 	may I have counterpetitioned?
may you have counterpetitioned?
may she have counterpetitioned?
may we have counterpetitioned?
may you have counterpetitioned?
may they have counterpetitioned? 	may I have been counterpetitioning?
may you have been counterpetitioning?
may she have been counterpetitioning?
may we have been counterpetitioning?
may you have been counterpetitioning?
may they have been counterpetitioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I counterpetition?
mayn't you counterpetition?
mayn't she counterpetition?
mayn't we counterpetition?
mayn't you counterpetition?
mayn't they counterpetition? 	mayn't I be counterpetitioning?
mayn't you be counterpetitioning?
mayn't she be counterpetitioning?
mayn't we be counterpetitioning?
mayn't you be counterpetitioning?
mayn't they be counterpetitioning? 	mayn't I have counterpetitioned?
mayn't you have counterpetitioned?
mayn't she have counterpetitioned?
mayn't we have counterpetitioned?
mayn't you have counterpetitioned?
mayn't they have counterpetitioned? 	mayn't I have been counterpetitioning?
mayn't you have been counterpetitioning?
mayn't she have been counterpetitioning?
mayn't we have been counterpetitioning?
mayn't you have been counterpetitioning?
mayn't they have been counterpetitioning?