I could skim you could skim he could skim we could skim you could skim they could skim
Forma con V-ing
I could be skimming you could be skimming he could be skimming we could be skimming you could be skimming they could be skimming
Perfetto
I could have skimmed you could have skimmed he could have skimmed we could have skimmed you could have skimmed they could have skimmed
Perfetto con V-ing
I could have been skimming you could have been skimming he could have been skimming we could have been skimming you could have been skimming they could have been skimming
Negazione
Forma semplice
I could not skim you could not skim he could not skim we could not skim you could not skim they could not skim
Forma con V-ing
I could not be skimming you could not be skimming he could not be skimming we could not be skimming you could not be skimming they could not be skimming
Perfetto
I could not have skimmed you could not have skimmed he could not have skimmed we could not have skimmed you could not have skimmed they could not have skimmed
Perfetto con V-ing
I could not have been skimming you could not have been skimming he could not have been skimming we could not have been skimming you could not have been skimming they could not have been skimming
Forma interrogativa
Forma semplice
could I skim? could you skim? could he skim? could we skim? could you skim? could they skim?
Forma con V-ing
could I be skimming? could you be skimming? could he be skimming? could we be skimming? could you be skimming? could they be skimming?
Perfetto
could I have skimmed? could you have skimmed? could he have skimmed? could we have skimmed? could you have skimmed? could they have skimmed?
Perfetto con V-ing
could I have been skimming? could you have been skimming? could he have been skimming? could we have been skimming? could you have been skimming? could they have been skimming?
Forma interro-negativa
Forma semplice
could I not skim? could you not skim? could he not skim? could we not skim? could you not skim? could they not skim?
Forma con V-ing
could I not be skimming? could you not be skimming? could he not be skimming? could we not be skimming? could you not be skimming? could they not be skimming?
Perfetto
could I not have skimmed? could you not have skimmed? could he not have skimmed? could we not have skimmed? could you not have skimmed? could they not have skimmed?
Perfetto con V-ing
could I not have been skimming? could you not have been skimming? could he not have been skimming? could we not have been skimming? could you not have been skimming? could they not have been skimming?