could scram
Regular verb: scram - scrammed- scrammed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could scram
you could scram
he could scram
we could scram
you could scram
they could scram 	I could be scramming
you could be scramming
he could be scramming
we could be scramming
you could be scramming
they could be scramming	I could have scrammed
you could have scrammed
he could have scrammed
we could have scrammed
you could have scrammed
they could have scrammed	I could have been scramming
you could have been scramming
he could have been scramming
we could have been scramming
you could have been scramming
they could have been scramming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't scram
you couldn't scram
he couldn't scram
we couldn't scram
you couldn't scram
they couldn't scram 	I couldn't be scramming
you couldn't be scramming
he couldn't be scramming
we couldn't be scramming
you couldn't be scramming
they couldn't be scramming	I couldn't have scrammed
you couldn't have scrammed
he couldn't have scrammed
we couldn't have scrammed
you couldn't have scrammed
they couldn't have scrammed	I couldn't have been scramming
you couldn't have been scramming
he couldn't have been scramming
we couldn't have been scramming
you couldn't have been scramming
they couldn't have been scramming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I scram?
could you scram?
could he scram?
could we scram?
could you scram?
could they scram? 	could I be scramming?
could you be scramming?
could he be scramming?
could we be scramming?
could you be scramming?
could they be scramming? 	could I have scrammed?
could you have scrammed?
could he have scrammed?
could we have scrammed?
could you have scrammed?
could they have scrammed? 	could I have been scramming?
could you have been scramming?
could he have been scramming?
could we have been scramming?
could you have been scramming?
could they have been scramming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I scram?
couldn't you scram?
couldn't he scram?
couldn't we scram?
couldn't you scram?
couldn't they scram? 	couldn't I be scramming?
couldn't you be scramming?
couldn't he be scramming?
couldn't we be scramming?
couldn't you be scramming?
couldn't they be scramming? 	couldn't I have scrammed?
couldn't you have scrammed?
couldn't he have scrammed?
couldn't we have scrammed?
couldn't you have scrammed?
couldn't they have scrammed? 	couldn't I have been scramming?
couldn't you have been scramming?
couldn't he have been scramming?
couldn't we have been scramming?
couldn't you have been scramming?
couldn't they have been scramming?