I could damp you could damp he could damp we could damp you could damp they could damp
V-ing form
I could be damping you could be damping he could be damping we could be damping you could be damping they could be damping
Perfect
I could have damped you could have damped he 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 he 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 he 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 he 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 he 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 he 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 he damp? could we damp? could you damp? could they damp?
V-ing form
could I be damping? could you be damping? could he be damping? could we be damping? could you be damping? could they be damping?
Perfect
could I have damped? could you have damped? could he 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 he 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 he 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 he 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 he 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 he not have been damping? could we not have been damping? could you not have been damping? could they not have been damping?