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 couldn't overdraw you couldn't overdraw he couldn't overdraw we couldn't overdraw you couldn't overdraw they couldn't overdraw
V-ing form
I couldn't be overdrawing you couldn't be overdrawing he couldn't be overdrawing we couldn't be overdrawing you couldn't be overdrawing they couldn't be overdrawing
Perfect
I couldn't have overdrawn you couldn't have overdrawn he couldn't have overdrawn we couldn't have overdrawn you couldn't have overdrawn they couldn't have overdrawn
V-ing perfect
I couldn't have been overdrawing you couldn't have been overdrawing he couldn't have been overdrawing we couldn't have been overdrawing you couldn't have been overdrawing they couldn't 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
couldn't I overdraw? couldn't you overdraw? couldn't he overdraw? couldn't we overdraw? couldn't you overdraw? couldn't they overdraw?
V-ing form
couldn't I be overdrawing? couldn't you be overdrawing? couldn't he be overdrawing? couldn't we be overdrawing? couldn't you be overdrawing? couldn't they be overdrawing?
Perfect
couldn't I have overdrawn? couldn't you have overdrawn? couldn't he have overdrawn? couldn't we have overdrawn? couldn't you have overdrawn? couldn't they have overdrawn?
V-ing perfect
couldn't I have been overdrawing? couldn't you have been overdrawing? couldn't he have been overdrawing? couldn't we have been overdrawing? couldn't you have been overdrawing? couldn't they have been overdrawing?