I could asphalt you could asphalt he could asphalt we could asphalt you could asphalt they could asphalt
V-ing form
I could be asphalting you could be asphalting he could be asphalting we could be asphalting you could be asphalting they could be asphalting
Perfect
I could have asphalted you could have asphalted he could have asphalted we could have asphalted you could have asphalted they could have asphalted
V-ing perfect
I could have been asphalting you could have been asphalting he could have been asphalting we could have been asphalting you could have been asphalting they could have been asphalting
Negation
Simple form
I could not asphalt you could not asphalt he could not asphalt we could not asphalt you could not asphalt they could not asphalt
V-ing form
I could not be asphalting you could not be asphalting he could not be asphalting we could not be asphalting you could not be asphalting they could not be asphalting
Perfect
I could not have asphalted you could not have asphalted he could not have asphalted we could not have asphalted you could not have asphalted they could not have asphalted
V-ing perfect
I could not have been asphalting you could not have been asphalting he could not have been asphalting we could not have been asphalting you could not have been asphalting they could not have been asphalting
Interrogative form
Simple form
could I asphalt? could you asphalt? could he asphalt? could we asphalt? could you asphalt? could they asphalt?
V-ing form
could I be asphalting? could you be asphalting? could he be asphalting? could we be asphalting? could you be asphalting? could they be asphalting?
Perfect
could I have asphalted? could you have asphalted? could he have asphalted? could we have asphalted? could you have asphalted? could they have asphalted?
V-ing perfect
could I have been asphalting? could you have been asphalting? could he have been asphalting? could we have been asphalting? could you have been asphalting? could they have been asphalting?
Interro-negative form
Simple form
could I not asphalt? could you not asphalt? could he not asphalt? could we not asphalt? could you not asphalt? could they not asphalt?
V-ing form
could I not be asphalting? could you not be asphalting? could he not be asphalting? could we not be asphalting? could you not be asphalting? could they not be asphalting?
Perfect
could I not have asphalted? could you not have asphalted? could he not have asphalted? could we not have asphalted? could you not have asphalted? could they not have asphalted?
V-ing perfect
could I not have been asphalting? could you not have been asphalting? could he not have been asphalting? could we not have been asphalting? could you not have been asphalting? could they not have been asphalting?