I can refine you can refine he can refine we can refine you can refine they can refine
Forma con V-ing
I can be refining you can be refining he can be refining we can be refining you can be refining they can be refining
Perfetto
I can have refined you can have refined he can have refined we can have refined you can have refined they can have refined
Perfetto con V-ing
I can have been refining you can have been refining he can have been refining we can have been refining you can have been refining they can have been refining
Negazione
Forma semplice
I can't refine you can't refine he can't refine we can't refine you can't refine they can't refine
Forma con V-ing
I can't be refining you can't be refining he can't be refining we can't be refining you can't be refining they can't be refining
Perfetto
I can't have refined you can't have refined he can't have refined we can't have refined you can't have refined they can't have refined
Perfetto con V-ing
I can't have been refining you can't have been refining he can't have been refining we can't have been refining you can't have been refining they can't have been refining
Forma interrogativa
Forma semplice
can I refine? can you refine? can he refine? can we refine? can you refine? can they refine?
Forma con V-ing
can I be refining? can you be refining? can he be refining? can we be refining? can you be refining? can they be refining?
Perfetto
can I have refined? can you have refined? can he have refined? can we have refined? can you have refined? can they have refined?
Perfetto con V-ing
can I have been refining? can you have been refining? can he have been refining? can we have been refining? can you have been refining? can they have been refining?
Forma interro-negativa
Forma semplice
can't I refine? can't you refine? can't he refine? can't we refine? can't you refine? can't they refine?
Forma con V-ing
can't I be refining? can't you be refining? can't he be refining? can't we be refining? can't you be refining? can't they be refining?
Perfetto
can't I have refined? can't you have refined? can't he have refined? can't we have refined? can't you have refined? can't they have refined?
Perfetto con V-ing
can't I have been refining? can't you have been refining? can't he have been refining? can't we have been refining? can't you have been refining? can't they have been refining?