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 mayn't duel you mayn't duel she mayn't duel we mayn't duel you mayn't duel they mayn't duel
V-ing form
I mayn't be dueling you mayn't be dueling she mayn't be dueling we mayn't be dueling you mayn't be dueling they mayn't be dueling
Perfect
I mayn't have dueled you mayn't have dueled she mayn't have dueled we mayn't have dueled you mayn't have dueled they mayn't have dueled
V-ing perfect
I mayn't have been dueling you mayn't have been dueling she mayn't have been dueling we mayn't have been dueling you mayn't have been dueling they mayn't 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
mayn't I duel? mayn't you duel? mayn't she duel? mayn't we duel? mayn't you duel? mayn't they duel?
V-ing form
mayn't I be dueling? mayn't you be dueling? mayn't she be dueling? mayn't we be dueling? mayn't you be dueling? mayn't they be dueling?
Perfect
mayn't I have dueled? mayn't you have dueled? mayn't she have dueled? mayn't we have dueled? mayn't you have dueled? mayn't they have dueled?
V-ing perfect
mayn't I have been dueling? mayn't you have been dueling? mayn't she have been dueling? mayn't we have been dueling? mayn't you have been dueling? mayn't they have been dueling?