English verb conjugation
COULD OUTDUEL

Regular verb: outduel - outdueled - outdueled

Affirmation

Simple form	V-ing form
I could outduel you could outduel he could outduel we could outduel you could outduel they could outduel	I could be outdueling you could be outdueling he could be outdueling we could be outdueling you could be outdueling they could be outdueling
Perfect	V-ing perfect
I could have outdueled you could have outdueled he could have outdueled we could have outdueled you could have outdueled they could have outdueled	I could have been outdueling you could have been outdueling he could have been outdueling we could have been outdueling you could have been outdueling they could have been outdueling

Negation

Simple form	V-ing form
I couldn't outduel you couldn't outduel he couldn't outduel we couldn't outduel you couldn't outduel they couldn't outduel	I couldn't be outdueling you couldn't be outdueling he couldn't be outdueling we couldn't be outdueling you couldn't be outdueling they couldn't be outdueling
Perfect	V-ing perfect
I couldn't have outdueled you couldn't have outdueled he couldn't have outdueled we couldn't have outdueled you couldn't have outdueled they couldn't have outdueled	I couldn't have been outdueling you couldn't have been outdueling he couldn't have been outdueling we couldn't have been outdueling you couldn't have been outdueling they couldn't have been outdueling

Interrogative form

Simple form	V-ing form
could I outduel? could you outduel? could he outduel? could we outduel? could you outduel? could they outduel?	could I be outdueling? could you be outdueling? could he be outdueling? could we be outdueling? could you be outdueling? could they be outdueling?
Perfect	V-ing perfect
could I have outdueled? could you have outdueled? could he have outdueled? could we have outdueled? could you have outdueled? could they have outdueled?	could I have been outdueling? could you have been outdueling? could he have been outdueling? could we have been outdueling? could you have been outdueling? could they have been outdueling?

Interro-negative form

Simple form	V-ing form
couldn't I outduel? couldn't you outduel? couldn't he outduel? couldn't we outduel? couldn't you outduel? couldn't they outduel?	couldn't I be outdueling? couldn't you be outdueling? couldn't he be outdueling? couldn't we be outdueling? couldn't you be outdueling? couldn't they be outdueling?
Perfect	V-ing perfect
couldn't I have outdueled? couldn't you have outdueled? couldn't he have outdueled? couldn't we have outdueled? couldn't you have outdueled? couldn't they have outdueled?	couldn't I have been outdueling? couldn't you have been outdueling? couldn't he have been outdueling? couldn't we have been outdueling? couldn't you have been outdueling? couldn't they have been outdueling?