Conjugação do verbo inglês
COULD SCUFF

Verbo regular: scuff - scuffed - scuffed

Afirmação

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

Negação

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

Forma interrogativa

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

Forma interro-Negação

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