English verb conjugation
COULD CUPEL

Regular verb: cupel - cupeled - cupeled

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

Simple form	V-ing form
couldn't I cupel? couldn't you cupel? couldn't he cupel? couldn't we cupel? couldn't you cupel? couldn't they cupel?	couldn't I be cupeling? couldn't you be cupeling? couldn't he be cupeling? couldn't we be cupeling? couldn't you be cupeling? couldn't they be cupeling?
Perfect	V-ing perfect
couldn't I have cupeled? couldn't you have cupeled? couldn't he have cupeled? couldn't we have cupeled? couldn't you have cupeled? couldn't they have cupeled?	couldn't I have been cupeling? couldn't you have been cupeling? couldn't he have been cupeling? couldn't we have been cupeling? couldn't you have been cupeling? couldn't they have been cupeling?