English verb conjugation
CAN DUPE

Regular verb: dupe - duped - duped

Affirmation

Simple form	V-ing form
I can dupe you can dupe she can dupe we can dupe you can dupe they can dupe	I can be duping you can be duping she can be duping we can be duping you can be duping they can be duping
Perfect	V-ing perfect
I can have duped you can have duped she can have duped we can have duped you can have duped they can have duped	I can have been duping you can have been duping she can have been duping we can have been duping you can have been duping they can have been duping

Negation

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

Interrogative form

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

Interro-negative form

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