English verb conjugation
MAY CONCERTISE

Regular verb: concertise - concertised - concertised

Affirmation

Simple form	V-ing form
I may concertise you may concertise she may concertise we may concertise you may concertise they may concertise	I may be concertising you may be concertising she may be concertising we may be concertising you may be concertising they may be concertising
Perfect	V-ing perfect
I may have concertised you may have concertised she may have concertised we may have concertised you may have concertised they may have concertised	I may have been concertising you may have been concertising she may have been concertising we may have been concertising you may have been concertising they may have been concertising

Negation

Simple form	V-ing form
I mayn't concertise you mayn't concertise she mayn't concertise we mayn't concertise you mayn't concertise they mayn't concertise	I mayn't be concertising you mayn't be concertising she mayn't be concertising we mayn't be concertising you mayn't be concertising they mayn't be concertising
Perfect	V-ing perfect
I mayn't have concertised you mayn't have concertised she mayn't have concertised we mayn't have concertised you mayn't have concertised they mayn't have concertised	I mayn't have been concertising you mayn't have been concertising she mayn't have been concertising we mayn't have been concertising you mayn't have been concertising they mayn't have been concertising

Interrogative form

Simple form	V-ing form
may I concertise? may you concertise? may she concertise? may we concertise? may you concertise? may they concertise?	may I be concertising? may you be concertising? may she be concertising? may we be concertising? may you be concertising? may they be concertising?
Perfect	V-ing perfect
may I have concertised? may you have concertised? may she have concertised? may we have concertised? may you have concertised? may they have concertised?	may I have been concertising? may you have been concertising? may she have been concertising? may we have been concertising? may you have been concertising? may they have been concertising?

Interro-negative form

Simple form	V-ing form
mayn't I concertise? mayn't you concertise? mayn't she concertise? mayn't we concertise? mayn't you concertise? mayn't they concertise?	mayn't I be concertising? mayn't you be concertising? mayn't she be concertising? mayn't we be concertising? mayn't you be concertising? mayn't they be concertising?
Perfect	V-ing perfect
mayn't I have concertised? mayn't you have concertised? mayn't she have concertised? mayn't we have concertised? mayn't you have concertised? mayn't they have concertised?	mayn't I have been concertising? mayn't you have been concertising? mayn't she have been concertising? mayn't we have been concertising? mayn't you have been concertising? mayn't they have been concertising?