English verb conjugation
SHOULD DUPE

Regular verb: dupe - duped - duped

Affirmation

Simple form	V-ing form
I'd dupe you'd dupe he'd dupe we'd dupe you'd dupe they'd dupe	I'd be duping you'd be duping he'd be duping we'd be duping you'd be duping they'd be duping
Perfect	V-ing perfect
I should've duped you should've duped he should've duped we should've duped you should've duped they should've duped	I should've been duping you should've been duping he should've been duping we should've been duping you should've been duping they should've been duping

Negation

Simple form	V-ing form
I shouldn't dupe you shouldn't dupe he shouldn't dupe we shouldn't dupe you shouldn't dupe they shouldn't dupe	I shouldn't be duping you shouldn't be duping he shouldn't be duping we shouldn't be duping you shouldn't be duping they shouldn't be duping
Perfect	V-ing perfect
I shouldn't have duped you shouldn't have duped he shouldn't have duped we shouldn't have duped you shouldn't have duped they shouldn't have duped	I shouldn't have been duping you shouldn't have been duping he shouldn't have been duping we shouldn't have been duping you shouldn't have been duping they shouldn't have been duping

Interrogative form

Simple form	V-ing form
should I dupe? should you dupe? should he dupe? should we dupe? should you dupe? should they dupe?	should I be duping? should you be duping? should he be duping? should we be duping? should you be duping? should they be duping?
Perfect	V-ing perfect
should I have duped? should you have duped? should he have duped? should we have duped? should you have duped? should they have duped?	should I have been duping? should you have been duping? should he have been duping? should we have been duping? should you have been duping? should they have been duping?

Interro-negative form

Simple form	V-ing form
shouldn't I dupe? shouldn't you dupe? shouldn't he dupe? shouldn't we dupe? shouldn't you dupe? shouldn't they dupe?	shouldn't I be duping? shouldn't you be duping? shouldn't he be duping? shouldn't we be duping? shouldn't you be duping? shouldn't they be duping?
Perfect	V-ing perfect
shouldn't I have duped? shouldn't you have duped? shouldn't he have duped? shouldn't we have duped? shouldn't you have duped? shouldn't they have duped?	shouldn't I have been duping? shouldn't you have been duping? shouldn't he have been duping? shouldn't we have been duping? shouldn't you have been duping? shouldn't they have been duping?