Conjugação do verbo inglês
COULD YARN

Verbo regular: yarn - yarned - yarned

Afirmação

Forma simple	Forma com V-ing
I could yarn you could yarn he could yarn we could yarn you could yarn they could yarn	I could be yarning you could be yarning he could be yarning we could be yarning you could be yarning they could be yarning
Perfeito	Perfeito com V-ing
I could have yarned you could have yarned he could have yarned we could have yarned you could have yarned they could have yarned	I could have been yarning you could have been yarning he could have been yarning we could have been yarning you could have been yarning they could have been yarning

Negação

Forma simple	Forma com V-ing
I could not yarn you could not yarn he could not yarn we could not yarn you could not yarn they could not yarn	I could not be yarning you could not be yarning he could not be yarning we could not be yarning you could not be yarning they could not be yarning
Perfeito	Perfeito com V-ing
I could not have yarned you could not have yarned he could not have yarned we could not have yarned you could not have yarned they could not have yarned	I could not have been yarning you could not have been yarning he could not have been yarning we could not have been yarning you could not have been yarning they could not have been yarning

Forma interrogativa

Forma simple	Forma com V-ing
could I yarn? could you yarn? could he yarn? could we yarn? could you yarn? could they yarn?	could I be yarning? could you be yarning? could he be yarning? could we be yarning? could you be yarning? could they be yarning?
Perfeito	Perfeito com V-ing
could I have yarned? could you have yarned? could he have yarned? could we have yarned? could you have yarned? could they have yarned?	could I have been yarning? could you have been yarning? could he have been yarning? could we have been yarning? could you have been yarning? could they have been yarning?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not yarn? could you not yarn? could he not yarn? could we not yarn? could you not yarn? could they not yarn?	could I not be yarning? could you not be yarning? could he not be yarning? could we not be yarning? could you not be yarning? could they not be yarning?
Perfeito	Perfeito com V-ing
could I not have yarned? could you not have yarned? could he not have yarned? could we not have yarned? could you not have yarned? could they not have yarned?	could I not have been yarning? could you not have been yarning? could he not have been yarning? could we not have been yarning? could you not have been yarning? could they not have been yarning?