may compete
Regular verb: compete - competed- competed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may compete
you may compete
she may compete
we may compete
you may compete
they may compete 	I may be competing
you may be competing
she may be competing
we may be competing
you may be competing
they may be competing	I may have competed
you may have competed
she may have competed
we may have competed
you may have competed
they may have competed	I may have been competing
you may have been competing
she may have been competing
we may have been competing
you may have been competing
they may have been competing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't compete
you mayn't compete
she mayn't compete
we mayn't compete
you mayn't compete
they mayn't compete 	I mayn't be competing
you mayn't be competing
she mayn't be competing
we mayn't be competing
you mayn't be competing
they mayn't be competing	I mayn't have competed
you mayn't have competed
she mayn't have competed
we mayn't have competed
you mayn't have competed
they mayn't have competed	I mayn't have been competing
you mayn't have been competing
she mayn't have been competing
we mayn't have been competing
you mayn't have been competing
they mayn't have been competing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I compete?
may you compete?
may she compete?
may we compete?
may you compete?
may they compete? 	may I be competing?
may you be competing?
may she be competing?
may we be competing?
may you be competing?
may they be competing? 	may I have competed?
may you have competed?
may she have competed?
may we have competed?
may you have competed?
may they have competed? 	may I have been competing?
may you have been competing?
may she have been competing?
may we have been competing?
may you have been competing?
may they have been competing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I compete?
mayn't you compete?
mayn't she compete?
mayn't we compete?
mayn't you compete?
mayn't they compete? 	mayn't I be competing?
mayn't you be competing?
mayn't she be competing?
mayn't we be competing?
mayn't you be competing?
mayn't they be competing? 	mayn't I have competed?
mayn't you have competed?
mayn't she have competed?
mayn't we have competed?
mayn't you have competed?
mayn't they have competed? 	mayn't I have been competing?
mayn't you have been competing?
mayn't she have been competing?
mayn't we have been competing?
mayn't you have been competing?
mayn't they have been competing?