I may concertina you may concertina she may concertina we may concertina you may concertina they may concertina
Forme en V-ing
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
I may have concertinaed you may have concertinaed she may have concertinaed we may have concertinaed you may have concertinaed they may have concertinaed
Perfect en V-ing
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
Négation
Forme simple
I may not concertina you may not concertina she may not concertina we may not concertina you may not concertina they may not concertina
Forme en V-ing
I may not be concertinaing you may not be concertinaing she may not be concertinaing we may not be concertinaing you may not be concertinaing they may not be concertinaing
Perfect
I may not have concertinaed you may not have concertinaed she may not have concertinaed we may not have concertinaed you may not have concertinaed they may not have concertinaed
Perfect en V-ing
I may not have been concertinaing you may not have been concertinaing she may not have been concertinaing we may not have been concertinaing you may not have been concertinaing they may not have been concertinaing
Forme interrogative
Forme simple
may I concertina? may you concertina? may she concertina? may we concertina? may you concertina? may they concertina?
Forme en V-ing
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
may I have concertinaed? may you have concertinaed? may she have concertinaed? may we have concertinaed? may you have concertinaed? may they have concertinaed?
Perfect en V-ing
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?
Forme interro-négative
Forme simple
may I not concertina? may you not concertina? may she not concertina? may we not concertina? may you not concertina? may they not concertina?
Forme en V-ing
may I not be concertinaing? may you not be concertinaing? may she not be concertinaing? may we not be concertinaing? may you not be concertinaing? may they not be concertinaing?
Perfect
may I not have concertinaed? may you not have concertinaed? may she not have concertinaed? may we not have concertinaed? may you not have concertinaed? may they not have concertinaed?
Perfect en V-ing
may I not have been concertinaing? may you not have been concertinaing? may she not have been concertinaing? may we not have been concertinaing? may you not have been concertinaing? may they not have been concertinaing?