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