Coniugazione del verbo inglese
COULD THREAD

Verbo regolare: thread - threaded - threaded

Affermazione

Forma semplice	Forma con 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
Perfetto	Perfetto con 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

Negazione

Forma semplice	Forma con V-ing
I couldn't thread you couldn't thread he couldn't thread we couldn't thread you couldn't thread they couldn't thread	I couldn't be threading you couldn't be threading he couldn't be threading we couldn't be threading you couldn't be threading they couldn't be threading
Perfetto	Perfetto con V-ing
I couldn't have threaded you couldn't have threaded he couldn't have threaded we couldn't have threaded you couldn't have threaded they couldn't have threaded	I couldn't have been threading you couldn't have been threading he couldn't have been threading we couldn't have been threading you couldn't have been threading they couldn't have been threading

Forma interrogativa

Forma semplice	Forma con 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?
Perfetto	Perfetto con 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-negativa

Forma semplice	Forma con V-ing
couldn't I thread? couldn't you thread? couldn't he thread? couldn't we thread? couldn't you thread? couldn't they thread?	couldn't I be threading? couldn't you be threading? couldn't he be threading? couldn't we be threading? couldn't you be threading? couldn't they be threading?
Perfetto	Perfetto con V-ing
couldn't I have threaded? couldn't you have threaded? couldn't he have threaded? couldn't we have threaded? couldn't you have threaded? couldn't they have threaded?	couldn't I have been threading? couldn't you have been threading? couldn't he have been threading? couldn't we have been threading? couldn't you have been threading? couldn't they have been threading?