I could dagger you could dagger he could dagger we could dagger you could dagger they could dagger
V-ing form
I could be daggering you could be daggering he could be daggering we could be daggering you could be daggering they could be daggering
Perfect
I could have daggered you could have daggered he could have daggered we could have daggered you could have daggered they could have daggered
V-ing perfect
I could have been daggering you could have been daggering he could have been daggering we could have been daggering you could have been daggering they could have been daggering
Negation
Simple form
I could not dagger you could not dagger he could not dagger we could not dagger you could not dagger they could not dagger
V-ing form
I could not be daggering you could not be daggering he could not be daggering we could not be daggering you could not be daggering they could not be daggering
Perfect
I could not have daggered you could not have daggered he could not have daggered we could not have daggered you could not have daggered they could not have daggered
V-ing perfect
I could not have been daggering you could not have been daggering he could not have been daggering we could not have been daggering you could not have been daggering they could not have been daggering
Interrogative form
Simple form
could I dagger? could you dagger? could he dagger? could we dagger? could you dagger? could they dagger?
V-ing form
could I be daggering? could you be daggering? could he be daggering? could we be daggering? could you be daggering? could they be daggering?
Perfect
could I have daggered? could you have daggered? could he have daggered? could we have daggered? could you have daggered? could they have daggered?
V-ing perfect
could I have been daggering? could you have been daggering? could he have been daggering? could we have been daggering? could you have been daggering? could they have been daggering?
Interro-negative form
Simple form
could I not dagger? could you not dagger? could he not dagger? could we not dagger? could you not dagger? could they not dagger?
V-ing form
could I not be daggering? could you not be daggering? could he not be daggering? could we not be daggering? could you not be daggering? could they not be daggering?
Perfect
could I not have daggered? could you not have daggered? could he not have daggered? could we not have daggered? could you not have daggered? could they not have daggered?
V-ing perfect
could I not have been daggering? could you not have been daggering? could he not have been daggering? could we not have been daggering? could you not have been daggering? could they not have been daggering?