could scam
Verbo regular: scam - scammed- scammed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could scam
you could scam
she could scam
we could scam
you could scam
they could scam 	I could be scamming
you could be scamming
she could be scamming
we could be scamming
you could be scamming
they could be scamming	I could have scammed
you could have scammed
she could have scammed
we could have scammed
you could have scammed
they could have scammed	I could have been scamming
you could have been scamming
she could have been scamming
we could have been scamming
you could have been scamming
they could have been scamming	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not scam
you could not scam
she could not scam
we could not scam
you could not scam
they could not scam 	I could not be scamming
you could not be scamming
she could not be scamming
we could not be scamming
you could not be scamming
they could not be scamming	I could not have scammed
you could not have scammed
she could not have scammed
we could not have scammed
you could not have scammed
they could not have scammed	I could not have been scamming
you could not have been scamming
she could not have been scamming
we could not have been scamming
you could not have been scamming
they could not have been scamming	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I scam?
could you scam?
could she scam?
could we scam?
could you scam?
could they scam? 	could I be scamming?
could you be scamming?
could she be scamming?
could we be scamming?
could you be scamming?
could they be scamming? 	could I have scammed?
could you have scammed?
could she have scammed?
could we have scammed?
could you have scammed?
could they have scammed? 	could I have been scamming?
could you have been scamming?
could she have been scamming?
could we have been scamming?
could you have been scamming?
could they have been scamming? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not scam?
could you not scam?
could she not scam?
could we not scam?
could you not scam?
could they not scam? 	could I not be scamming?
could you not be scamming?
could she not be scamming?
could we not be scamming?
could you not be scamming?
could they not be scamming? 	could I not have scammed?
could you not have scammed?
could she not have scammed?
could we not have scammed?
could you not have scammed?
could they not have scammed? 	could I not have been scamming?
could you not have been scamming?
could she not have been scamming?
could we not have been scamming?
could you not have been scamming?
could they not have been scamming?