Coniugazione del verbo inglese
COULD ROUGHEN

Verbo regolare: roughen - roughened - roughened

Affermazione

Forma semplice	Forma con V-ing
I could roughen you could roughen he could roughen we could roughen you could roughen they could roughen	I could be roughening you could be roughening he could be roughening we could be roughening you could be roughening they could be roughening
Perfetto	Perfetto con V-ing
I could have roughened you could have roughened he could have roughened we could have roughened you could have roughened they could have roughened	I could have been roughening you could have been roughening he could have been roughening we could have been roughening you could have been roughening they could have been roughening

Negazione

Forma semplice	Forma con V-ing
I could not roughen you could not roughen he could not roughen we could not roughen you could not roughen they could not roughen	I could not be roughening you could not be roughening he could not be roughening we could not be roughening you could not be roughening they could not be roughening
Perfetto	Perfetto con V-ing
I could not have roughened you could not have roughened he could not have roughened we could not have roughened you could not have roughened they could not have roughened	I could not have been roughening you could not have been roughening he could not have been roughening we could not have been roughening you could not have been roughening they could not have been roughening

Forma interrogativa

Forma semplice	Forma con V-ing
could I roughen? could you roughen? could he roughen? could we roughen? could you roughen? could they roughen?	could I be roughening? could you be roughening? could he be roughening? could we be roughening? could you be roughening? could they be roughening?
Perfetto	Perfetto con V-ing
could I have roughened? could you have roughened? could he have roughened? could we have roughened? could you have roughened? could they have roughened?	could I have been roughening? could you have been roughening? could he have been roughening? could we have been roughening? could you have been roughening? could they have been roughening?

Forma interro-negativa

Forma semplice	Forma con V-ing
could I not roughen? could you not roughen? could he not roughen? could we not roughen? could you not roughen? could they not roughen?	could I not be roughening? could you not be roughening? could he not be roughening? could we not be roughening? could you not be roughening? could they not be roughening?
Perfetto	Perfetto con V-ing
could I not have roughened? could you not have roughened? could he not have roughened? could we not have roughened? could you not have roughened? could they not have roughened?	could I not have been roughening? could you not have been roughening? could he not have been roughening? could we not have been roughening? could you not have been roughening? could they not have been roughening?