I could kitten you could kitten she could kitten we could kitten you could kitten they could kitten
Forma com V-ing
I could be kittening you could be kittening she could be kittening we could be kittening you could be kittening they could be kittening
Perfeito
I could have kittened you could have kittened she could have kittened we could have kittened you could have kittened they could have kittened
Perfeito com V-ing
I could have been kittening you could have been kittening she could have been kittening we could have been kittening you could have been kittening they could have been kittening
Negação
Forma simple
I couldn't kitten you couldn't kitten she couldn't kitten we couldn't kitten you couldn't kitten they couldn't kitten
Forma com V-ing
I couldn't be kittening you couldn't be kittening she couldn't be kittening we couldn't be kittening you couldn't be kittening they couldn't be kittening
Perfeito
I couldn't have kittened you couldn't have kittened she couldn't have kittened we couldn't have kittened you couldn't have kittened they couldn't have kittened
Perfeito com V-ing
I couldn't have been kittening you couldn't have been kittening she couldn't have been kittening we couldn't have been kittening you couldn't have been kittening they couldn't have been kittening
Forma interrogativa
Forma simple
could I kitten? could you kitten? could she kitten? could we kitten? could you kitten? could they kitten?
Forma com V-ing
could I be kittening? could you be kittening? could she be kittening? could we be kittening? could you be kittening? could they be kittening?
Perfeito
could I have kittened? could you have kittened? could she have kittened? could we have kittened? could you have kittened? could they have kittened?
Perfeito com V-ing
could I have been kittening? could you have been kittening? could she have been kittening? could we have been kittening? could you have been kittening? could they have been kittening?
Forma interro-Negação
Forma simple
couldn't I kitten? couldn't you kitten? couldn't she kitten? couldn't we kitten? couldn't you kitten? couldn't they kitten?
Forma com V-ing
couldn't I be kittening? couldn't you be kittening? couldn't she be kittening? couldn't we be kittening? couldn't you be kittening? couldn't they be kittening?
Perfeito
couldn't I have kittened? couldn't you have kittened? couldn't she have kittened? couldn't we have kittened? couldn't you have kittened? couldn't they have kittened?
Perfeito com V-ing
couldn't I have been kittening? couldn't you have been kittening? couldn't she have been kittening? couldn't we have been kittening? couldn't you have been kittening? couldn't they have been kittening?