Cuidado, este verbo pode não existir, a conjugação é dada como exemplo.
Afirmação
Forma simple
I could arc arc you could arc arc he could arc arc we could arc arc you could arc arc they could arc arc
Forma com V-ing
I could be arc arcing you could be arc arcing he could be arc arcing we could be arc arcing you could be arc arcing they could be arc arcing
Perfeito
I could have arc arced you could have arc arced he could have arc arced we could have arc arced you could have arc arced they could have arc arced
Perfeito com V-ing
I could have been arc arcing you could have been arc arcing he could have been arc arcing we could have been arc arcing you could have been arc arcing they could have been arc arcing
Negação
Forma simple
I couldn't arc arc you couldn't arc arc he couldn't arc arc we couldn't arc arc you couldn't arc arc they couldn't arc arc
Forma com V-ing
I couldn't be arc arcing you couldn't be arc arcing he couldn't be arc arcing we couldn't be arc arcing you couldn't be arc arcing they couldn't be arc arcing
Perfeito
I couldn't have arc arced you couldn't have arc arced he couldn't have arc arced we couldn't have arc arced you couldn't have arc arced they couldn't have arc arced
Perfeito com V-ing
I couldn't have been arc arcing you couldn't have been arc arcing he couldn't have been arc arcing we couldn't have been arc arcing you couldn't have been arc arcing they couldn't have been arc arcing
Forma interrogativa
Forma simple
could I arc arc? could you arc arc? could he arc arc? could we arc arc? could you arc arc? could they arc arc?
Forma com V-ing
could I be arc arcing? could you be arc arcing? could he be arc arcing? could we be arc arcing? could you be arc arcing? could they be arc arcing?
Perfeito
could I have arc arced? could you have arc arced? could he have arc arced? could we have arc arced? could you have arc arced? could they have arc arced?
Perfeito com V-ing
could I have been arc arcing? could you have been arc arcing? could he have been arc arcing? could we have been arc arcing? could you have been arc arcing? could they have been arc arcing?
Forma interro-Negação
Forma simple
couldn't I arc arc? couldn't you arc arc? couldn't he arc arc? couldn't we arc arc? couldn't you arc arc? couldn't they arc arc?
Forma com V-ing
couldn't I be arc arcing? couldn't you be arc arcing? couldn't he be arc arcing? couldn't we be arc arcing? couldn't you be arc arcing? couldn't they be arc arcing?
Perfeito
couldn't I have arc arced? couldn't you have arc arced? couldn't he have arc arced? couldn't we have arc arced? couldn't you have arc arced? couldn't they have arc arced?
Perfeito com V-ing
couldn't I have been arc arcing? couldn't you have been arc arcing? couldn't he have been arc arcing? couldn't we have been arc arcing? couldn't you have been arc arcing? couldn't they have been arc arcing?