Coniugazione del verbo inglese
CAN PUFF

Verbo regolare: puff - puffed - puffed

Affermazione

Forma semplice	Forma con V-ing
I can puff you can puff he can puff we can puff you can puff they can puff	I can be puffing you can be puffing he can be puffing we can be puffing you can be puffing they can be puffing
Perfetto	Perfetto con V-ing
I can have puffed you can have puffed he 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 he can have been puffing we can have been puffing you can have been puffing they can have been puffing

Negazione

Forma semplice	Forma con V-ing
I can't puff you can't puff he can't puff we can't puff you can't puff they can't puff	I can't be puffing you can't be puffing he can't be puffing we can't be puffing you can't be puffing they can't be puffing
Perfetto	Perfetto con V-ing
I can't have puffed you can't have puffed he can't have puffed we can't have puffed you can't have puffed they can't have puffed	I can't have been puffing you can't have been puffing he can't have been puffing we can't have been puffing you can't have been puffing they can't have been puffing

Forma interrogativa

Forma semplice	Forma con V-ing
can I puff? can you puff? can he puff? can we puff? can you puff? can they puff?	can I be puffing? can you be puffing? can he be puffing? can we be puffing? can you be puffing? can they be puffing?
Perfetto	Perfetto con V-ing
can I have puffed? can you have puffed? can he 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 he have been puffing? can we have been puffing? can you have been puffing? can they have been puffing?

Forma interro-negativa

Forma semplice	Forma con V-ing
can't I puff? can't you puff? can't he puff? can't we puff? can't you puff? can't they puff?	can't I be puffing? can't you be puffing? can't he be puffing? can't we be puffing? can't you be puffing? can't they be puffing?
Perfetto	Perfetto con V-ing
can't I have puffed? can't you have puffed? can't he have puffed? can't we have puffed? can't you have puffed? can't they have puffed?	can't I have been puffing? can't you have been puffing? can't he have been puffing? can't we have been puffing? can't you have been puffing? can't they have been puffing?