can shortchange
Regular verb: shortchange - shortchanged- shortchanged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can shortchange
you can shortchange
he can shortchange
we can shortchange
you can shortchange
they can shortchange 	I can be shortchanging
you can be shortchanging
he can be shortchanging
we can be shortchanging
you can be shortchanging
they can be shortchanging	I can have shortchanged
you can have shortchanged
he can have shortchanged
we can have shortchanged
you can have shortchanged
they can have shortchanged	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 	V-ing form 	Perfect 	V-ing perfect 	
I can't shortchange
you can't shortchange
he can't shortchange
we can't shortchange
you can't shortchange
they can't shortchange 	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	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	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 	V-ing form 	Perfect 	V-ing perfect 	
can I shortchange?
can you shortchange?
can he shortchange?
can we shortchange?
can you shortchange?
can they shortchange? 	can I be shortchanging?
can you be shortchanging?
can he be shortchanging?
can we be shortchanging?
can you be shortchanging?
can they be shortchanging? 	can I have shortchanged?
can you have shortchanged?
can he have shortchanged?
can we have shortchanged?
can you have shortchanged?
can they have shortchanged? 	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 	V-ing form 	Perfect 	V-ing perfect 	
can't I shortchange?
can't you shortchange?
can't he shortchange?
can't we shortchange?
can't you shortchange?
can't they shortchange? 	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? 	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? 	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?