could scum
Verbo regolare: scum - scummed- scummed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could scum
you could scum
she could scum
we could scum
you could scum
they could scum 	I could be scumming
you could be scumming
she could be scumming
we could be scumming
you could be scumming
they could be scumming	I could have scummed
you could have scummed
she could have scummed
we could have scummed
you could have scummed
they could have scummed	I could have been scumming
you could have been scumming
she could have been scumming
we could have been scumming
you could have been scumming
they could have been scumming	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not scum
you could not scum
she could not scum
we could not scum
you could not scum
they could not scum 	I could not be scumming
you could not be scumming
she could not be scumming
we could not be scumming
you could not be scumming
they could not be scumming	I could not have scummed
you could not have scummed
she could not have scummed
we could not have scummed
you could not have scummed
they could not have scummed	I could not have been scumming
you could not have been scumming
she could not have been scumming
we could not have been scumming
you could not have been scumming
they could not have been scumming	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I scum?
could you scum?
could she scum?
could we scum?
could you scum?
could they scum? 	could I be scumming?
could you be scumming?
could she be scumming?
could we be scumming?
could you be scumming?
could they be scumming? 	could I have scummed?
could you have scummed?
could she have scummed?
could we have scummed?
could you have scummed?
could they have scummed? 	could I have been scumming?
could you have been scumming?
could she have been scumming?
could we have been scumming?
could you have been scumming?
could they have been scumming? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not scum?
could you not scum?
could she not scum?
could we not scum?
could you not scum?
could they not scum? 	could I not be scumming?
could you not be scumming?
could she not be scumming?
could we not be scumming?
could you not be scumming?
could they not be scumming? 	could I not have scummed?
could you not have scummed?
could she not have scummed?
could we not have scummed?
could you not have scummed?
could they not have scummed? 	could I not have been scumming?
could you not have been scumming?
could she not have been scumming?
could we not have been scumming?
could you not have been scumming?
could they not have been scumming?