Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I may pay off you may pay off he may pay off we may pay off you may pay off they may pay off
V-ing form
I may be pay offing you may be pay offing he may be pay offing we may be pay offing you may be pay offing they may be pay offing
Perfect
I may have pay offed you may have pay offed he may have pay offed we may have pay offed you may have pay offed they may have pay offed
V-ing perfect
I may have been pay offing you may have been pay offing he may have been pay offing we may have been pay offing you may have been pay offing they may have been pay offing
Negation
Simple form
I mayn't pay off you mayn't pay off he mayn't pay off we mayn't pay off you mayn't pay off they mayn't pay off
V-ing form
I mayn't be pay offing you mayn't be pay offing he mayn't be pay offing we mayn't be pay offing you mayn't be pay offing they mayn't be pay offing
Perfect
I mayn't have pay offed you mayn't have pay offed he mayn't have pay offed we mayn't have pay offed you mayn't have pay offed they mayn't have pay offed
V-ing perfect
I mayn't have been pay offing you mayn't have been pay offing he mayn't have been pay offing we mayn't have been pay offing you mayn't have been pay offing they mayn't have been pay offing
Interrogative form
Simple form
may I pay off? may you pay off? may he pay off? may we pay off? may you pay off? may they pay off?
V-ing form
may I be pay offing? may you be pay offing? may he be pay offing? may we be pay offing? may you be pay offing? may they be pay offing?
Perfect
may I have pay offed? may you have pay offed? may he have pay offed? may we have pay offed? may you have pay offed? may they have pay offed?
V-ing perfect
may I have been pay offing? may you have been pay offing? may he have been pay offing? may we have been pay offing? may you have been pay offing? may they have been pay offing?
Interro-negative form
Simple form
mayn't I pay off? mayn't you pay off? mayn't he pay off? mayn't we pay off? mayn't you pay off? mayn't they pay off?
V-ing form
mayn't I be pay offing? mayn't you be pay offing? mayn't he be pay offing? mayn't we be pay offing? mayn't you be pay offing? mayn't they be pay offing?
Perfect
mayn't I have pay offed? mayn't you have pay offed? mayn't he have pay offed? mayn't we have pay offed? mayn't you have pay offed? mayn't they have pay offed?
V-ing perfect
mayn't I have been pay offing? mayn't you have been pay offing? mayn't he have been pay offing? mayn't we have been pay offing? mayn't you have been pay offing? mayn't they have been pay offing?