should duel
Regular verb: duel - dueled- dueled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd duel
you'd duel
she'd duel
we'd duel
you'd duel
they'd duel 	I'd be dueling
you'd be dueling
she'd be dueling
we'd be dueling
you'd be dueling
they'd be dueling	I should've dueled
you should've dueled
she should've dueled
we should've dueled
you should've dueled
they should've dueled	I should've been dueling
you should've been dueling
she should've been dueling
we should've been dueling
you should've been dueling
they should've been dueling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't duel
you shouldn't duel
she shouldn't duel
we shouldn't duel
you shouldn't duel
they shouldn't duel 	I shouldn't be dueling
you shouldn't be dueling
she shouldn't be dueling
we shouldn't be dueling
you shouldn't be dueling
they shouldn't be dueling	I shouldn't have dueled
you shouldn't have dueled
she shouldn't have dueled
we shouldn't have dueled
you shouldn't have dueled
they shouldn't have dueled	I shouldn't have been dueling
you shouldn't have been dueling
she shouldn't have been dueling
we shouldn't have been dueling
you shouldn't have been dueling
they shouldn't have been dueling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I duel?
should you duel?
should she duel?
should we duel?
should you duel?
should they duel? 	should I be dueling?
should you be dueling?
should she be dueling?
should we be dueling?
should you be dueling?
should they be dueling? 	should I have dueled?
should you have dueled?
should she have dueled?
should we have dueled?
should you have dueled?
should they have dueled? 	should I have been dueling?
should you have been dueling?
should she have been dueling?
should we have been dueling?
should you have been dueling?
should they have been dueling? 	

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