I may perish you may perish he may perish we may perish you may perish they may perish
V-ing form
I may be perishing you may be perishing he may be perishing we may be perishing you may be perishing they may be perishing
Perfect
I may have perished you may have perished he may have perished we may have perished you may have perished they may have perished
V-ing perfect
I may have been perishing you may have been perishing he may have been perishing we may have been perishing you may have been perishing they may have been perishing
Negation
Simple form
I mayn't perish you mayn't perish he mayn't perish we mayn't perish you mayn't perish they mayn't perish
V-ing form
I mayn't be perishing you mayn't be perishing he mayn't be perishing we mayn't be perishing you mayn't be perishing they mayn't be perishing
Perfect
I mayn't have perished you mayn't have perished he mayn't have perished we mayn't have perished you mayn't have perished they mayn't have perished
V-ing perfect
I mayn't have been perishing you mayn't have been perishing he mayn't have been perishing we mayn't have been perishing you mayn't have been perishing they mayn't have been perishing
Interrogative form
Simple form
may I perish? may you perish? may he perish? may we perish? may you perish? may they perish?
V-ing form
may I be perishing? may you be perishing? may he be perishing? may we be perishing? may you be perishing? may they be perishing?
Perfect
may I have perished? may you have perished? may he have perished? may we have perished? may you have perished? may they have perished?
V-ing perfect
may I have been perishing? may you have been perishing? may he have been perishing? may we have been perishing? may you have been perishing? may they have been perishing?
Interro-negative form
Simple form
mayn't I perish? mayn't you perish? mayn't he perish? mayn't we perish? mayn't you perish? mayn't they perish?
V-ing form
mayn't I be perishing? mayn't you be perishing? mayn't he be perishing? mayn't we be perishing? mayn't you be perishing? mayn't they be perishing?
Perfect
mayn't I have perished? mayn't you have perished? mayn't he have perished? mayn't we have perished? mayn't you have perished? mayn't they have perished?
V-ing perfect
mayn't I have been perishing? mayn't you have been perishing? mayn't he have been perishing? mayn't we have been perishing? mayn't you have been perishing? mayn't they have been perishing?