Conjugação do verbo inglês
COULD THREAD

Verbo regular: thread - threaded - threaded

Afirmação

Forma simple	Forma com V-ing
I could thread you could thread he could thread we could thread you could thread they could thread	I could be threading you could be threading he could be threading we could be threading you could be threading they could be threading
Perfeito	Perfeito com V-ing
I could have threaded you could have threaded he could have threaded we could have threaded you could have threaded they could have threaded	I could have been threading you could have been threading he could have been threading we could have been threading you could have been threading they could have been threading

Negação

Forma simple	Forma com V-ing
I could not thread you could not thread he could not thread we could not thread you could not thread they could not thread	I could not be threading you could not be threading he could not be threading we could not be threading you could not be threading they could not be threading
Perfeito	Perfeito com V-ing
I could not have threaded you could not have threaded he could not have threaded we could not have threaded you could not have threaded they could not have threaded	I could not have been threading you could not have been threading he could not have been threading we could not have been threading you could not have been threading they could not have been threading

Forma interrogativa

Forma simple	Forma com V-ing
could I thread? could you thread? could he thread? could we thread? could you thread? could they thread?	could I be threading? could you be threading? could he be threading? could we be threading? could you be threading? could they be threading?
Perfeito	Perfeito com V-ing
could I have threaded? could you have threaded? could he have threaded? could we have threaded? could you have threaded? could they have threaded?	could I have been threading? could you have been threading? could he have been threading? could we have been threading? could you have been threading? could they have been threading?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not thread? could you not thread? could he not thread? could we not thread? could you not thread? could they not thread?	could I not be threading? could you not be threading? could he not be threading? could we not be threading? could you not be threading? could they not be threading?
Perfeito	Perfeito com V-ing
could I not have threaded? could you not have threaded? could he not have threaded? could we not have threaded? could you not have threaded? could they not have threaded?	could I not have been threading? could you not have been threading? could he not have been threading? could we not have been threading? could you not have been threading? could they not have been threading?