English verb conjugation
MUST DOGFIGHT

Irregular verb: dogfight - dogfought - dogfought

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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