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