I could scram you could scram she could scram we could scram you could scram they could scram
V-ing form
I could be scramming you could be scramming she could be scramming we could be scramming you could be scramming they could be scramming
Perfect
I could have scrammed you could have scrammed she could have scrammed we could have scrammed you could have scrammed they could have scrammed
V-ing perfect
I could have been scramming you could have been scramming she could have been scramming we could have been scramming you could have been scramming they could have been scramming
Negation
Simple form
I could not scram you could not scram she could not scram we could not scram you could not scram they could not scram
V-ing form
I could not be scramming you could not be scramming she could not be scramming we could not be scramming you could not be scramming they could not be scramming
Perfect
I could not have scrammed you could not have scrammed she could not have scrammed we could not have scrammed you could not have scrammed they could not have scrammed
V-ing perfect
I could not have been scramming you could not have been scramming she could not have been scramming we could not have been scramming you could not have been scramming they could not have been scramming
Interrogative form
Simple form
could I scram? could you scram? could she scram? could we scram? could you scram? could they scram?
V-ing form
could I be scramming? could you be scramming? could she be scramming? could we be scramming? could you be scramming? could they be scramming?
Perfect
could I have scrammed? could you have scrammed? could she have scrammed? could we have scrammed? could you have scrammed? could they have scrammed?
V-ing perfect
could I have been scramming? could you have been scramming? could she have been scramming? could we have been scramming? could you have been scramming? could they have been scramming?
Interro-negative form
Simple form
could I not scram? could you not scram? could she not scram? could we not scram? could you not scram? could they not scram?
V-ing form
could I not be scramming? could you not be scramming? could she not be scramming? could we not be scramming? could you not be scramming? could they not be scramming?
Perfect
could I not have scrammed? could you not have scrammed? could she not have scrammed? could we not have scrammed? could you not have scrammed? could they not have scrammed?
V-ing perfect
could I not have been scramming? could you not have been scramming? could she not have been scramming? could we not have been scramming? could you not have been scramming? could they not have been scramming?