I could deal you could deal she could deal we could deal you could deal they could deal
V-ing form
I could be dealing you could be dealing she could be dealing we could be dealing you could be dealing they could be dealing
Perfect
I could have dealt you could have dealt she could have dealt we could have dealt you could have dealt they could have dealt
V-ing perfect
I could have been dealing you could have been dealing she could have been dealing we could have been dealing you could have been dealing they could have been dealing
Negation
Simple form
I could not deal you could not deal she could not deal we could not deal you could not deal they could not deal
V-ing form
I could not be dealing you could not be dealing she could not be dealing we could not be dealing you could not be dealing they could not be dealing
Perfect
I could not have dealt you could not have dealt she could not have dealt we could not have dealt you could not have dealt they could not have dealt
V-ing perfect
I could not have been dealing you could not have been dealing she could not have been dealing we could not have been dealing you could not have been dealing they could not have been dealing
Interrogative form
Simple form
could I deal? could you deal? could she deal? could we deal? could you deal? could they deal?
V-ing form
could I be dealing? could you be dealing? could she be dealing? could we be dealing? could you be dealing? could they be dealing?
Perfect
could I have dealt? could you have dealt? could she have dealt? could we have dealt? could you have dealt? could they have dealt?
V-ing perfect
could I have been dealing? could you have been dealing? could she have been dealing? could we have been dealing? could you have been dealing? could they have been dealing?
Interro-negative form
Simple form
could I not deal? could you not deal? could she not deal? could we not deal? could you not deal? could they not deal?
V-ing form
could I not be dealing? could you not be dealing? could she not be dealing? could we not be dealing? could you not be dealing? could they not be dealing?
Perfect
could I not have dealt? could you not have dealt? could she not have dealt? could we not have dealt? could you not have dealt? could they not have dealt?
V-ing perfect
could I not have been dealing? could you not have been dealing? could she not have been dealing? could we not have been dealing? could you not have been dealing? could they not have been dealing?