English verb conjugation
MAY CONCERTINA

Regular verb: concertina - concertinaed - concertinaed

Affirmation

Simple form	V-ing form
I may concertina you may concertina she may concertina we may concertina you may concertina they may concertina	I may be concertinaing you may be concertinaing she may be concertinaing we may be concertinaing you may be concertinaing they may be concertinaing
Perfect	V-ing perfect
I may have concertinaed you may have concertinaed she may have concertinaed we may have concertinaed you may have concertinaed they may have concertinaed	I may have been concertinaing you may have been concertinaing she may have been concertinaing we may have been concertinaing you may have been concertinaing they may have been concertinaing

Negation

Simple form	V-ing form
I mayn't concertina you mayn't concertina she mayn't concertina we mayn't concertina you mayn't concertina they mayn't concertina	I mayn't be concertinaing you mayn't be concertinaing she mayn't be concertinaing we mayn't be concertinaing you mayn't be concertinaing they mayn't be concertinaing
Perfect	V-ing perfect
I mayn't have concertinaed you mayn't have concertinaed she mayn't have concertinaed we mayn't have concertinaed you mayn't have concertinaed they mayn't have concertinaed	I mayn't have been concertinaing you mayn't have been concertinaing she mayn't have been concertinaing we mayn't have been concertinaing you mayn't have been concertinaing they mayn't have been concertinaing

Interrogative form

Simple form	V-ing form
may I concertina? may you concertina? may she concertina? may we concertina? may you concertina? may they concertina?	may I be concertinaing? may you be concertinaing? may she be concertinaing? may we be concertinaing? may you be concertinaing? may they be concertinaing?
Perfect	V-ing perfect
may I have concertinaed? may you have concertinaed? may she have concertinaed? may we have concertinaed? may you have concertinaed? may they have concertinaed?	may I have been concertinaing? may you have been concertinaing? may she have been concertinaing? may we have been concertinaing? may you have been concertinaing? may they have been concertinaing?

Interro-negative form

Simple form	V-ing form
mayn't I concertina? mayn't you concertina? mayn't she concertina? mayn't we concertina? mayn't you concertina? mayn't they concertina?	mayn't I be concertinaing? mayn't you be concertinaing? mayn't she be concertinaing? mayn't we be concertinaing? mayn't you be concertinaing? mayn't they be concertinaing?
Perfect	V-ing perfect
mayn't I have concertinaed? mayn't you have concertinaed? mayn't she have concertinaed? mayn't we have concertinaed? mayn't you have concertinaed? mayn't they have concertinaed?	mayn't I have been concertinaing? mayn't you have been concertinaing? mayn't she have been concertinaing? mayn't we have been concertinaing? mayn't you have been concertinaing? mayn't they have been concertinaing?