I could blunt you could blunt he could blunt we could blunt you could blunt they could blunt
V-ing form
I could be blunting you could be blunting he could be blunting we could be blunting you could be blunting they could be blunting
Perfect
I could have blunted you could have blunted he could have blunted we could have blunted you could have blunted they could have blunted
V-ing perfect
I could have been blunting you could have been blunting he could have been blunting we could have been blunting you could have been blunting they could have been blunting
Negation
Simple form
I could not blunt you could not blunt he could not blunt we could not blunt you could not blunt they could not blunt
V-ing form
I could not be blunting you could not be blunting he could not be blunting we could not be blunting you could not be blunting they could not be blunting
Perfect
I could not have blunted you could not have blunted he could not have blunted we could not have blunted you could not have blunted they could not have blunted
V-ing perfect
I could not have been blunting you could not have been blunting he could not have been blunting we could not have been blunting you could not have been blunting they could not have been blunting
Interrogative form
Simple form
could I blunt? could you blunt? could he blunt? could we blunt? could you blunt? could they blunt?
V-ing form
could I be blunting? could you be blunting? could he be blunting? could we be blunting? could you be blunting? could they be blunting?
Perfect
could I have blunted? could you have blunted? could he have blunted? could we have blunted? could you have blunted? could they have blunted?
V-ing perfect
could I have been blunting? could you have been blunting? could he have been blunting? could we have been blunting? could you have been blunting? could they have been blunting?
Interro-negative form
Simple form
could I not blunt? could you not blunt? could he not blunt? could we not blunt? could you not blunt? could they not blunt?
V-ing form
could I not be blunting? could you not be blunting? could he not be blunting? could we not be blunting? could you not be blunting? could they not be blunting?
Perfect
could I not have blunted? could you not have blunted? could he not have blunted? could we not have blunted? could you not have blunted? could they not have blunted?
V-ing perfect
could I not have been blunting? could you not have been blunting? could he not have been blunting? could we not have been blunting? could you not have been blunting? could they not have been blunting?