Conjugación del verbo inglés
COULD SCUM

Verbo regular: scum - scummed - scummed

Afirmación

Forma simple	Forma con V-ing
I could scum you could scum he could scum we could scum you could scum they could scum	I could be scumming you could be scumming he could be scumming we could be scumming you could be scumming they could be scumming
Perfecto	Perfecto con V-ing
I could have scummed you could have scummed he 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 he could have been scumming we could have been scumming you could have been scumming they could have been scumming

Negación

Forma simple	Forma con V-ing
I couldn't scum you couldn't scum he couldn't scum we couldn't scum you couldn't scum they couldn't scum	I couldn't be scumming you couldn't be scumming he couldn't be scumming we couldn't be scumming you couldn't be scumming they couldn't be scumming
Perfecto	Perfecto con V-ing
I couldn't have scummed you couldn't have scummed he couldn't have scummed we couldn't have scummed you couldn't have scummed they couldn't have scummed	I couldn't have been scumming you couldn't have been scumming he couldn't have been scumming we couldn't have been scumming you couldn't have been scumming they couldn't have been scumming

Forma interrogativa

Forma simple	Forma con V-ing
could I scum? could you scum? could he scum? could we scum? could you scum? could they scum?	could I be scumming? could you be scumming? could he be scumming? could we be scumming? could you be scumming? could they be scumming?
Perfecto	Perfecto con V-ing
could I have scummed? could you have scummed? could he 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 he have been scumming? could we have been scumming? could you have been scumming? could they have been scumming?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I scum? couldn't you scum? couldn't he scum? couldn't we scum? couldn't you scum? couldn't they scum?	couldn't I be scumming? couldn't you be scumming? couldn't he be scumming? couldn't we be scumming? couldn't you be scumming? couldn't they be scumming?
Perfecto	Perfecto con V-ing
couldn't I have scummed? couldn't you have scummed? couldn't he have scummed? couldn't we have scummed? couldn't you have scummed? couldn't they have scummed?	couldn't I have been scumming? couldn't you have been scumming? couldn't he have been scumming? couldn't we have been scumming? couldn't you have been scumming? couldn't they have been scumming?