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