English verb conjugation
MAY ROUGHEN

Regular verb: roughen - roughened - roughened

Affirmation

Simple form	V-ing form
I may roughen you may roughen he may roughen we may roughen you may roughen they may roughen	I may be roughening you may be roughening he may be roughening we may be roughening you may be roughening they may be roughening
Perfect	V-ing perfect
I may have roughened you may have roughened he may have roughened we may have roughened you may have roughened they may have roughened	I may have been roughening you may have been roughening he may have been roughening we may have been roughening you may have been roughening they may have been roughening

Negation

Simple form	V-ing form
I may not roughen you may not roughen he may not roughen we may not roughen you may not roughen they may not roughen	I may not be roughening you may not be roughening he may not be roughening we may not be roughening you may not be roughening they may not be roughening
Perfect	V-ing perfect
I may not have roughened you may not have roughened he may not have roughened we may not have roughened you may not have roughened they may not have roughened	I may not have been roughening you may not have been roughening he may not have been roughening we may not have been roughening you may not have been roughening they may not have been roughening

Interrogative form

Simple form	V-ing form
may I roughen? may you roughen? may he roughen? may we roughen? may you roughen? may they roughen?	may I be roughening? may you be roughening? may he be roughening? may we be roughening? may you be roughening? may they be roughening?
Perfect	V-ing perfect
may I have roughened? may you have roughened? may he have roughened? may we have roughened? may you have roughened? may they have roughened?	may I have been roughening? may you have been roughening? may he have been roughening? may we have been roughening? may you have been roughening? may they have been roughening?

Interro-negative form

Simple form	V-ing form
may I not roughen? may you not roughen? may he not roughen? may we not roughen? may you not roughen? may they not roughen?	may I not be roughening? may you not be roughening? may he not be roughening? may we not be roughening? may you not be roughening? may they not be roughening?
Perfect	V-ing perfect
may I not have roughened? may you not have roughened? may he not have roughened? may we not have roughened? may you not have roughened? may they not have roughened?	may I not have been roughening? may you not have been roughening? may he not have been roughening? may we not have been roughening? may you not have been roughening? may they not have been roughening?