English verb conjugation
COULD DOGFIGHT

Irregular verb: dogfight - dogfought - dogfought

Affirmation

Simple form	V-ing form
I could dogfight you could dogfight he could dogfight we could dogfight you could dogfight they could dogfight	I could be dogfighting you could be dogfighting he could be dogfighting we could be dogfighting you could be dogfighting they could be dogfighting
Perfect	V-ing perfect
I could have dogfought you could have dogfought he could have dogfought we could have dogfought you could have dogfought they could have dogfought	I could have been dogfighting you could have been dogfighting he could have been dogfighting we could have been dogfighting you could have been dogfighting they could have been dogfighting

Negation

Simple form	V-ing form
I could not dogfight you could not dogfight he could not dogfight we could not dogfight you could not dogfight they could not dogfight	I could not be dogfighting you could not be dogfighting he could not be dogfighting we could not be dogfighting you could not be dogfighting they could not be dogfighting
Perfect	V-ing perfect
I could not have dogfought you could not have dogfought he could not have dogfought we could not have dogfought you could not have dogfought they could not have dogfought	I could not have been dogfighting you could not have been dogfighting he could not have been dogfighting we could not have been dogfighting you could not have been dogfighting they could not have been dogfighting

Interrogative form

Simple form	V-ing form
could I dogfight? could you dogfight? could he dogfight? could we dogfight? could you dogfight? could they dogfight?	could I be dogfighting? could you be dogfighting? could he be dogfighting? could we be dogfighting? could you be dogfighting? could they be dogfighting?
Perfect	V-ing perfect
could I have dogfought? could you have dogfought? could he have dogfought? could we have dogfought? could you have dogfought? could they have dogfought?	could I have been dogfighting? could you have been dogfighting? could he have been dogfighting? could we have been dogfighting? could you have been dogfighting? could they have been dogfighting?

Interro-negative form

Simple form	V-ing form
could I not dogfight? could you not dogfight? could he not dogfight? could we not dogfight? could you not dogfight? could they not dogfight?	could I not be dogfighting? could you not be dogfighting? could he not be dogfighting? could we not be dogfighting? could you not be dogfighting? could they not be dogfighting?
Perfect	V-ing perfect
could I not have dogfought? could you not have dogfought? could he not have dogfought? could we not have dogfought? could you not have dogfought? could they not have dogfought?	could I not have been dogfighting? could you not have been dogfighting? could he not have been dogfighting? could we not have been dogfighting? could you not have been dogfighting? could they not have been dogfighting?