I may extinguish you may extinguish she may extinguish we may extinguish you may extinguish they may extinguish
V-ing form
I may be extinguishing you may be extinguishing she may be extinguishing we may be extinguishing you may be extinguishing they may be extinguishing
Perfect
I may have extinguished you may have extinguished she may have extinguished we may have extinguished you may have extinguished they may have extinguished
V-ing perfect
I may have been extinguishing you may have been extinguishing she may have been extinguishing we may have been extinguishing you may have been extinguishing they may have been extinguishing
Negation
Simple form
I mayn't extinguish you mayn't extinguish she mayn't extinguish we mayn't extinguish you mayn't extinguish they mayn't extinguish
V-ing form
I mayn't be extinguishing you mayn't be extinguishing she mayn't be extinguishing we mayn't be extinguishing you mayn't be extinguishing they mayn't be extinguishing
Perfect
I mayn't have extinguished you mayn't have extinguished she mayn't have extinguished we mayn't have extinguished you mayn't have extinguished they mayn't have extinguished
V-ing perfect
I mayn't have been extinguishing you mayn't have been extinguishing she mayn't have been extinguishing we mayn't have been extinguishing you mayn't have been extinguishing they mayn't have been extinguishing
Interrogative form
Simple form
may I extinguish? may you extinguish? may she extinguish? may we extinguish? may you extinguish? may they extinguish?
V-ing form
may I be extinguishing? may you be extinguishing? may she be extinguishing? may we be extinguishing? may you be extinguishing? may they be extinguishing?
Perfect
may I have extinguished? may you have extinguished? may she have extinguished? may we have extinguished? may you have extinguished? may they have extinguished?
V-ing perfect
may I have been extinguishing? may you have been extinguishing? may she have been extinguishing? may we have been extinguishing? may you have been extinguishing? may they have been extinguishing?
Interro-negative form
Simple form
mayn't I extinguish? mayn't you extinguish? mayn't she extinguish? mayn't we extinguish? mayn't you extinguish? mayn't they extinguish?
V-ing form
mayn't I be extinguishing? mayn't you be extinguishing? mayn't she be extinguishing? mayn't we be extinguishing? mayn't you be extinguishing? mayn't they be extinguishing?
Perfect
mayn't I have extinguished? mayn't you have extinguished? mayn't she have extinguished? mayn't we have extinguished? mayn't you have extinguished? mayn't they have extinguished?
V-ing perfect
mayn't I have been extinguishing? mayn't you have been extinguishing? mayn't she have been extinguishing? mayn't we have been extinguishing? mayn't you have been extinguishing? mayn't they have been extinguishing?