Coniugazione del verbo inglese
CAN RUFF

Verbo regolare: ruff - ruffed - ruffed

Affermazione

Forma semplice	Forma con V-ing
I can ruff you can ruff she can ruff we can ruff you can ruff they can ruff	I can be ruffing you can be ruffing she can be ruffing we can be ruffing you can be ruffing they can be ruffing
Perfetto	Perfetto con V-ing
I can have ruffed you can have ruffed she can have ruffed we can have ruffed you can have ruffed they can have ruffed	I can have been ruffing you can have been ruffing she can have been ruffing we can have been ruffing you can have been ruffing they can have been ruffing

Negazione

Forma semplice	Forma con V-ing
I cannot ruff you cannot ruff she cannot ruff we cannot ruff you cannot ruff they cannot ruff	I cannot be ruffing you cannot be ruffing she cannot be ruffing we cannot be ruffing you cannot be ruffing they cannot be ruffing
Perfetto	Perfetto con V-ing
I cannot have ruffed you cannot have ruffed she cannot have ruffed we cannot have ruffed you cannot have ruffed they cannot have ruffed	I cannot have been ruffing you cannot have been ruffing she cannot have been ruffing we cannot have been ruffing you cannot have been ruffing they cannot have been ruffing

Forma interrogativa

Forma semplice	Forma con V-ing
can I ruff? can you ruff? can she ruff? can we ruff? can you ruff? can they ruff?	can I be ruffing? can you be ruffing? can she be ruffing? can we be ruffing? can you be ruffing? can they be ruffing?
Perfetto	Perfetto con V-ing
can I have ruffed? can you have ruffed? can she have ruffed? can we have ruffed? can you have ruffed? can they have ruffed?	can I have been ruffing? can you have been ruffing? can she have been ruffing? can we have been ruffing? can you have been ruffing? can they have been ruffing?

Forma interro-negativa

Forma semplice	Forma con V-ing
can I not ruff? can you not ruff? can she not ruff? can we not ruff? can you not ruff? can they not ruff?	can I not be ruffing? can you not be ruffing? can she not be ruffing? can we not be ruffing? can you not be ruffing? can they not be ruffing?
Perfetto	Perfetto con V-ing
can I not have ruffed? can you not have ruffed? can she not have ruffed? can we not have ruffed? can you not have ruffed? can they not have ruffed?	can I not have been ruffing? can you not have been ruffing? can she not have been ruffing? can we not have been ruffing? can you not have been ruffing? can they not have been ruffing?