Conjugação do verbo inglês
COULD PUFF

Verbo regular: puff - puffed - puffed

Afirmação

Forma simple	Forma com V-ing
I could puff you could puff he could puff we could puff you could puff they could puff	I could be puffing you could be puffing he could be puffing we could be puffing you could be puffing they could be puffing
Perfeito	Perfeito com V-ing
I could have puffed you could have puffed he could have puffed we could have puffed you could have puffed they could have puffed	I could have been puffing you could have been puffing he could have been puffing we could have been puffing you could have been puffing they could have been puffing

Negação

Forma simple	Forma com V-ing
I couldn't puff you couldn't puff he couldn't puff we couldn't puff you couldn't puff they couldn't puff	I couldn't be puffing you couldn't be puffing he couldn't be puffing we couldn't be puffing you couldn't be puffing they couldn't be puffing
Perfeito	Perfeito com V-ing
I couldn't have puffed you couldn't have puffed he couldn't have puffed we couldn't have puffed you couldn't have puffed they couldn't have puffed	I couldn't have been puffing you couldn't have been puffing he couldn't have been puffing we couldn't have been puffing you couldn't have been puffing they couldn't have been puffing

Forma interrogativa

Forma simple	Forma com V-ing
could I puff? could you puff? could he puff? could we puff? could you puff? could they puff?	could I be puffing? could you be puffing? could he be puffing? could we be puffing? could you be puffing? could they be puffing?
Perfeito	Perfeito com V-ing
could I have puffed? could you have puffed? could he have puffed? could we have puffed? could you have puffed? could they have puffed?	could I have been puffing? could you have been puffing? could he have been puffing? could we have been puffing? could you have been puffing? could they have been puffing?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I puff? couldn't you puff? couldn't he puff? couldn't we puff? couldn't you puff? couldn't they puff?	couldn't I be puffing? couldn't you be puffing? couldn't he be puffing? couldn't we be puffing? couldn't you be puffing? couldn't they be puffing?
Perfeito	Perfeito com V-ing
couldn't I have puffed? couldn't you have puffed? couldn't he have puffed? couldn't we have puffed? couldn't you have puffed? couldn't they have puffed?	couldn't I have been puffing? couldn't you have been puffing? couldn't he have been puffing? couldn't we have been puffing? couldn't you have been puffing? couldn't they have been puffing?