I could draft you could draft he could draft we could draft you could draft they could draft
V-ing form
I could be drafting you could be drafting he could be drafting we could be drafting you could be drafting they could be drafting
Perfect
I could have drafted you could have drafted he could have drafted we could have drafted you could have drafted they could have drafted
V-ing perfect
I could have been drafting you could have been drafting he could have been drafting we could have been drafting you could have been drafting they could have been drafting
Negation
Simple form
I could not draft you could not draft he could not draft we could not draft you could not draft they could not draft
V-ing form
I could not be drafting you could not be drafting he could not be drafting we could not be drafting you could not be drafting they could not be drafting
Perfect
I could not have drafted you could not have drafted he could not have drafted we could not have drafted you could not have drafted they could not have drafted
V-ing perfect
I could not have been drafting you could not have been drafting he could not have been drafting we could not have been drafting you could not have been drafting they could not have been drafting
Interrogative form
Simple form
could I draft? could you draft? could he draft? could we draft? could you draft? could they draft?
V-ing form
could I be drafting? could you be drafting? could he be drafting? could we be drafting? could you be drafting? could they be drafting?
Perfect
could I have drafted? could you have drafted? could he have drafted? could we have drafted? could you have drafted? could they have drafted?
V-ing perfect
could I have been drafting? could you have been drafting? could he have been drafting? could we have been drafting? could you have been drafting? could they have been drafting?
Interro-negative form
Simple form
could I not draft? could you not draft? could he not draft? could we not draft? could you not draft? could they not draft?
V-ing form
could I not be drafting? could you not be drafting? could he not be drafting? could we not be drafting? could you not be drafting? could they not be drafting?
Perfect
could I not have drafted? could you not have drafted? could he not have drafted? could we not have drafted? could you not have drafted? could they not have drafted?
V-ing perfect
could I not have been drafting? could you not have been drafting? could he not have been drafting? could we not have been drafting? could you not have been drafting? could they not have been drafting?