English verb conjugation
CAN CUPEL

Regular verb: cupel - cupeled - cupeled

Affirmation

Simple form	V-ing form
I can cupel you can cupel he can cupel we can cupel you can cupel they can cupel	I can be cupeling you can be cupeling he can be cupeling we can be cupeling you can be cupeling they can be cupeling
Perfect	V-ing perfect
I can have cupeled you can have cupeled he can have cupeled we can have cupeled you can have cupeled they can have cupeled	I can have been cupeling you can have been cupeling he can have been cupeling we can have been cupeling you can have been cupeling they can have been cupeling

Negation

Simple form	V-ing form
I cannot cupel you cannot cupel he cannot cupel we cannot cupel you cannot cupel they cannot cupel	I cannot be cupeling you cannot be cupeling he cannot be cupeling we cannot be cupeling you cannot be cupeling they cannot be cupeling
Perfect	V-ing perfect
I cannot have cupeled you cannot have cupeled he cannot have cupeled we cannot have cupeled you cannot have cupeled they cannot have cupeled	I cannot have been cupeling you cannot have been cupeling he cannot have been cupeling we cannot have been cupeling you cannot have been cupeling they cannot have been cupeling

Interrogative form

Simple form	V-ing form
can I cupel? can you cupel? can he cupel? can we cupel? can you cupel? can they cupel?	can I be cupeling? can you be cupeling? can he be cupeling? can we be cupeling? can you be cupeling? can they be cupeling?
Perfect	V-ing perfect
can I have cupeled? can you have cupeled? can he have cupeled? can we have cupeled? can you have cupeled? can they have cupeled?	can I have been cupeling? can you have been cupeling? can he have been cupeling? can we have been cupeling? can you have been cupeling? can they have been cupeling?

Interro-negative form

Simple form	V-ing form
can I not cupel? can you not cupel? can he not cupel? can we not cupel? can you not cupel? can they not cupel?	can I not be cupeling? can you not be cupeling? can he not be cupeling? can we not be cupeling? can you not be cupeling? can they not be cupeling?
Perfect	V-ing perfect
can I not have cupeled? can you not have cupeled? can he not have cupeled? can we not have cupeled? can you not have cupeled? can they not have cupeled?	can I not have been cupeling? can you not have been cupeling? can he not have been cupeling? can we not have been cupeling? can you not have been cupeling? can they not have been cupeling?