I could persist you could persist he could persist we could persist you could persist they could persist
Forma con V-ing
I could be persisting you could be persisting he could be persisting we could be persisting you could be persisting they could be persisting
Perfetto
I could have persisted you could have persisted he could have persisted we could have persisted you could have persisted they could have persisted
Perfetto con V-ing
I could have been persisting you could have been persisting he could have been persisting we could have been persisting you could have been persisting they could have been persisting
Negazione
Forma semplice
I could not persist you could not persist he could not persist we could not persist you could not persist they could not persist
Forma con V-ing
I could not be persisting you could not be persisting he could not be persisting we could not be persisting you could not be persisting they could not be persisting
Perfetto
I could not have persisted you could not have persisted he could not have persisted we could not have persisted you could not have persisted they could not have persisted
Perfetto con V-ing
I could not have been persisting you could not have been persisting he could not have been persisting we could not have been persisting you could not have been persisting they could not have been persisting
Forma interrogativa
Forma semplice
could I persist? could you persist? could he persist? could we persist? could you persist? could they persist?
Forma con V-ing
could I be persisting? could you be persisting? could he be persisting? could we be persisting? could you be persisting? could they be persisting?
Perfetto
could I have persisted? could you have persisted? could he have persisted? could we have persisted? could you have persisted? could they have persisted?
Perfetto con V-ing
could I have been persisting? could you have been persisting? could he have been persisting? could we have been persisting? could you have been persisting? could they have been persisting?
Forma interro-negativa
Forma semplice
could I not persist? could you not persist? could he not persist? could we not persist? could you not persist? could they not persist?
Forma con V-ing
could I not be persisting? could you not be persisting? could he not be persisting? could we not be persisting? could you not be persisting? could they not be persisting?
Perfetto
could I not have persisted? could you not have persisted? could he not have persisted? could we not have persisted? could you not have persisted? could they not have persisted?
Perfetto con V-ing
could I not have been persisting? could you not have been persisting? could he not have been persisting? could we not have been persisting? could you not have been persisting? could they not have been persisting?