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