I may duel you may duel she may duel we may duel you may duel they may duel
V-ing form
I may be dueling you may be dueling she may be dueling we may be dueling you may be dueling they may be dueling
Perfect
I may have dueled you may have dueled she may have dueled we may have dueled you may have dueled they may have dueled
V-ing perfect
I may have been dueling you may have been dueling she may have been dueling we may have been dueling you may have been dueling they may have been dueling
Negation
Simple form
I may not duel you may not duel she may not duel we may not duel you may not duel they may not duel
V-ing form
I may not be dueling you may not be dueling she may not be dueling we may not be dueling you may not be dueling they may not be dueling
Perfect
I may not have dueled you may not have dueled she may not have dueled we may not have dueled you may not have dueled they may not have dueled
V-ing perfect
I may not have been dueling you may not have been dueling she may not have been dueling we may not have been dueling you may not have been dueling they may not have been dueling
Interrogative form
Simple form
may I duel? may you duel? may she duel? may we duel? may you duel? may they duel?
V-ing form
may I be dueling? may you be dueling? may she be dueling? may we be dueling? may you be dueling? may they be dueling?
Perfect
may I have dueled? may you have dueled? may she have dueled? may we have dueled? may you have dueled? may they have dueled?
V-ing perfect
may I have been dueling? may you have been dueling? may she have been dueling? may we have been dueling? may you have been dueling? may they have been dueling?
Interro-negative form
Simple form
may I not duel? may you not duel? may she not duel? may we not duel? may you not duel? may they not duel?
V-ing form
may I not be dueling? may you not be dueling? may she not be dueling? may we not be dueling? may you not be dueling? may they not be dueling?
Perfect
may I not have dueled? may you not have dueled? may she not have dueled? may we not have dueled? may you not have dueled? may they not have dueled?
V-ing perfect
may I not have been dueling? may you not have been dueling? may she not have been dueling? may we not have been dueling? may you not have been dueling? may they not have been dueling?