Conjugação do verbo inglês
COULD SIUM

Verbo regular: sium - siumed - siumed

Afirmação

Forma simple	Forma com V-ing
I could sium you could sium she could sium we could sium you could sium they could sium	I could be siuming you could be siuming she could be siuming we could be siuming you could be siuming they could be siuming
Perfeito	Perfeito com V-ing
I could have siumed you could have siumed she could have siumed we could have siumed you could have siumed they could have siumed	I could have been siuming you could have been siuming she could have been siuming we could have been siuming you could have been siuming they could have been siuming

Negação

Forma simple	Forma com V-ing
I could not sium you could not sium she could not sium we could not sium you could not sium they could not sium	I could not be siuming you could not be siuming she could not be siuming we could not be siuming you could not be siuming they could not be siuming
Perfeito	Perfeito com V-ing
I could not have siumed you could not have siumed she could not have siumed we could not have siumed you could not have siumed they could not have siumed	I could not have been siuming you could not have been siuming she could not have been siuming we could not have been siuming you could not have been siuming they could not have been siuming

Forma interrogativa

Forma simple	Forma com V-ing
could I sium? could you sium? could she sium? could we sium? could you sium? could they sium?	could I be siuming? could you be siuming? could she be siuming? could we be siuming? could you be siuming? could they be siuming?
Perfeito	Perfeito com V-ing
could I have siumed? could you have siumed? could she have siumed? could we have siumed? could you have siumed? could they have siumed?	could I have been siuming? could you have been siuming? could she have been siuming? could we have been siuming? could you have been siuming? could they have been siuming?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not sium? could you not sium? could she not sium? could we not sium? could you not sium? could they not sium?	could I not be siuming? could you not be siuming? could she not be siuming? could we not be siuming? could you not be siuming? could they not be siuming?
Perfeito	Perfeito com V-ing
could I not have siumed? could you not have siumed? could she not have siumed? could we not have siumed? could you not have siumed? could they not have siumed?	could I not have been siuming? could you not have been siuming? could she not have been siuming? could we not have been siuming? could you not have been siuming? could they not have been siuming?