Conjugação do verbo inglês
CAN PUFF

Verbo regular: puff - puffed - puffed

Afirmação

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

Negação

Forma simple	Forma com V-ing
I cannot puff you cannot puff she cannot puff we cannot puff you cannot puff they cannot puff	I cannot be puffing you cannot be puffing she cannot be puffing we cannot be puffing you cannot be puffing they cannot be puffing
Perfeito	Perfeito com V-ing
I cannot have puffed you cannot have puffed she cannot have puffed we cannot have puffed you cannot have puffed they cannot have puffed	I cannot have been puffing you cannot have been puffing she cannot have been puffing we cannot have been puffing you cannot have been puffing they cannot have been puffing

Forma interrogativa

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

Forma interro-Negação

Forma simple	Forma com V-ing
can I not puff? can you not puff? can she not puff? can we not puff? can you not puff? can they not puff?	can I not be puffing? can you not be puffing? can she not be puffing? can we not be puffing? can you not be puffing? can they not be puffing?
Perfeito	Perfeito com V-ing
can I not have puffed? can you not have puffed? can she not have puffed? can we not have puffed? can you not have puffed? can they not have puffed?	can I not have been puffing? can you not have been puffing? can she not have been puffing? can we not have been puffing? can you not have been puffing? can they not have been puffing?