I could damp you could damp she could damp we could damp you could damp they could damp
V-ing form
I could be damping you could be damping she could be damping we could be damping you could be damping they could be damping
Perfect
I could have damped you could have damped she could have damped we could have damped you could have damped they could have damped
V-ing perfect
I could have been damping you could have been damping she could have been damping we could have been damping you could have been damping they could have been damping
Negation
Simple form
I could not damp you could not damp she could not damp we could not damp you could not damp they could not damp
V-ing form
I could not be damping you could not be damping she could not be damping we could not be damping you could not be damping they could not be damping
Perfect
I could not have damped you could not have damped she could not have damped we could not have damped you could not have damped they could not have damped
V-ing perfect
I could not have been damping you could not have been damping she could not have been damping we could not have been damping you could not have been damping they could not have been damping
Interrogative form
Simple form
could I damp? could you damp? could she damp? could we damp? could you damp? could they damp?
V-ing form
could I be damping? could you be damping? could she be damping? could we be damping? could you be damping? could they be damping?
Perfect
could I have damped? could you have damped? could she have damped? could we have damped? could you have damped? could they have damped?
V-ing perfect
could I have been damping? could you have been damping? could she have been damping? could we have been damping? could you have been damping? could they have been damping?
Interro-negative form
Simple form
could I not damp? could you not damp? could she not damp? could we not damp? could you not damp? could they not damp?
V-ing form
could I not be damping? could you not be damping? could she not be damping? could we not be damping? could you not be damping? could they not be damping?
Perfect
could I not have damped? could you not have damped? could she not have damped? could we not have damped? could you not have damped? could they not have damped?
V-ing perfect
could I not have been damping? could you not have been damping? could she not have been damping? could we not have been damping? could you not have been damping? could they not have been damping?