may concertize
Regular verb: concertize - concertized- concertized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may concertize
you may concertize
he may concertize
we may concertize
you may concertize
they may concertize 	I may be concertizing
you may be concertizing
he may be concertizing
we may be concertizing
you may be concertizing
they may be concertizing	I may have concertized
you may have concertized
he may have concertized
we may have concertized
you may have concertized
they may have concertized	I may have been concertizing
you may have been concertizing
he may have been concertizing
we may have been concertizing
you may have been concertizing
they may have been concertizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't concertize
you mayn't concertize
he mayn't concertize
we mayn't concertize
you mayn't concertize
they mayn't concertize 	I mayn't be concertizing
you mayn't be concertizing
he mayn't be concertizing
we mayn't be concertizing
you mayn't be concertizing
they mayn't be concertizing	I mayn't have concertized
you mayn't have concertized
he mayn't have concertized
we mayn't have concertized
you mayn't have concertized
they mayn't have concertized	I mayn't have been concertizing
you mayn't have been concertizing
he mayn't have been concertizing
we mayn't have been concertizing
you mayn't have been concertizing
they mayn't have been concertizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I concertize?
may you concertize?
may he concertize?
may we concertize?
may you concertize?
may they concertize? 	may I be concertizing?
may you be concertizing?
may he be concertizing?
may we be concertizing?
may you be concertizing?
may they be concertizing? 	may I have concertized?
may you have concertized?
may he have concertized?
may we have concertized?
may you have concertized?
may they have concertized? 	may I have been concertizing?
may you have been concertizing?
may he have been concertizing?
may we have been concertizing?
may you have been concertizing?
may they have been concertizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I concertize?
mayn't you concertize?
mayn't he concertize?
mayn't we concertize?
mayn't you concertize?
mayn't they concertize? 	mayn't I be concertizing?
mayn't you be concertizing?
mayn't he be concertizing?
mayn't we be concertizing?
mayn't you be concertizing?
mayn't they be concertizing? 	mayn't I have concertized?
mayn't you have concertized?
mayn't he have concertized?
mayn't we have concertized?
mayn't you have concertized?
mayn't they have concertized? 	mayn't I have been concertizing?
mayn't you have been concertizing?
mayn't he have been concertizing?
mayn't we have been concertizing?
mayn't you have been concertizing?
mayn't they have been concertizing?