I could overdraw you could overdraw he could overdraw we could overdraw you could overdraw they could overdraw
V-ing form
I could be overdrawing you could be overdrawing he could be overdrawing we could be overdrawing you could be overdrawing they could be overdrawing
Perfect
I could have overdrawn you could have overdrawn he could have overdrawn we could have overdrawn you could have overdrawn they could have overdrawn
V-ing perfect
I could have been overdrawing you could have been overdrawing he could have been overdrawing we could have been overdrawing you could have been overdrawing they could have been overdrawing
Negation
Simple form
I could not overdraw you could not overdraw he could not overdraw we could not overdraw you could not overdraw they could not overdraw
V-ing form
I could not be overdrawing you could not be overdrawing he could not be overdrawing we could not be overdrawing you could not be overdrawing they could not be overdrawing
Perfect
I could not have overdrawn you could not have overdrawn he could not have overdrawn we could not have overdrawn you could not have overdrawn they could not have overdrawn
V-ing perfect
I could not have been overdrawing you could not have been overdrawing he could not have been overdrawing we could not have been overdrawing you could not have been overdrawing they could not have been overdrawing
Interrogative form
Simple form
could I overdraw? could you overdraw? could he overdraw? could we overdraw? could you overdraw? could they overdraw?
V-ing form
could I be overdrawing? could you be overdrawing? could he be overdrawing? could we be overdrawing? could you be overdrawing? could they be overdrawing?
Perfect
could I have overdrawn? could you have overdrawn? could he have overdrawn? could we have overdrawn? could you have overdrawn? could they have overdrawn?
V-ing perfect
could I have been overdrawing? could you have been overdrawing? could he have been overdrawing? could we have been overdrawing? could you have been overdrawing? could they have been overdrawing?
Interro-negative form
Simple form
could I not overdraw? could you not overdraw? could he not overdraw? could we not overdraw? could you not overdraw? could they not overdraw?
V-ing form
could I not be overdrawing? could you not be overdrawing? could he not be overdrawing? could we not be overdrawing? could you not be overdrawing? could they not be overdrawing?
Perfect
could I not have overdrawn? could you not have overdrawn? could he not have overdrawn? could we not have overdrawn? could you not have overdrawn? could they not have overdrawn?
V-ing perfect
could I not have been overdrawing? could you not have been overdrawing? could he not have been overdrawing? could we not have been overdrawing? could you not have been overdrawing? could they not have been overdrawing?