should scuff
Verbo regular: scuff - scuffed- scuffed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should scuff
you should scuff
he should scuff
we should scuff
you should scuff
they should scuff 	I should be scuffing
you should be scuffing
he should be scuffing
we should be scuffing
you should be scuffing
they should be scuffing	I should have scuffed
you should have scuffed
he should have scuffed
we should have scuffed
you should have scuffed
they should have scuffed	I should have been scuffing
you should have been scuffing
he should have been scuffing
we should have been scuffing
you should have been scuffing
they should have been scuffing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not scuff
you should not scuff
he should not scuff
we should not scuff
you should not scuff
they should not scuff 	I should not be scuffing
you should not be scuffing
he should not be scuffing
we should not be scuffing
you should not be scuffing
they should not be scuffing	I should not have scuffed
you should not have scuffed
he should not have scuffed
we should not have scuffed
you should not have scuffed
they should not have scuffed	I should not have been scuffing
you should not have been scuffing
he should not have been scuffing
we should not have been scuffing
you should not have been scuffing
they should not have been scuffing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I scuff?
should you scuff?
should he scuff?
should we scuff?
should you scuff?
should they scuff? 	should I be scuffing?
should you be scuffing?
should he be scuffing?
should we be scuffing?
should you be scuffing?
should they be scuffing? 	should I have scuffed?
should you have scuffed?
should he have scuffed?
should we have scuffed?
should you have scuffed?
should they have scuffed? 	should I have been scuffing?
should you have been scuffing?
should he have been scuffing?
should we have been scuffing?
should you have been scuffing?
should they have been scuffing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not scuff?
should you not scuff?
should he not scuff?
should we not scuff?
should you not scuff?
should they not scuff? 	should I not be scuffing?
should you not be scuffing?
should he not be scuffing?
should we not be scuffing?
should you not be scuffing?
should they not be scuffing? 	should I not have scuffed?
should you not have scuffed?
should he not have scuffed?
should we not have scuffed?
should you not have scuffed?
should they not have scuffed? 	should I not have been scuffing?
should you not have been scuffing?
should he not have been scuffing?
should we not have been scuffing?
should you not have been scuffing?
should they not have been scuffing?