English verb conjugation
MUST BIRD-DOG

Regular verb: bird-dog - bird-doged - bird-doged

Affirmation

Simple form	V-ing form
I must bird-dog you must bird-dog he must bird-dog we must bird-dog you must bird-dog they must bird-dog	I must be bird-doging you must be bird-doging he must be bird-doging we must be bird-doging you must be bird-doging they must be bird-doging
Perfect	V-ing perfect
I must have bird-doged you must have bird-doged he must have bird-doged we must have bird-doged you must have bird-doged they must have bird-doged	I must have been bird-doging you must have been bird-doging he must have been bird-doging we must have been bird-doging you must have been bird-doging they must have been bird-doging

Negation

Simple form	V-ing form
I mustn't bird-dog you mustn't bird-dog he mustn't bird-dog we mustn't bird-dog you mustn't bird-dog they mustn't bird-dog	I mustn't be bird-doging you mustn't be bird-doging he mustn't be bird-doging we mustn't be bird-doging you mustn't be bird-doging they mustn't be bird-doging
Perfect	V-ing perfect
I mustn't have bird-doged you mustn't have bird-doged he mustn't have bird-doged we mustn't have bird-doged you mustn't have bird-doged they mustn't have bird-doged	I mustn't have been bird-doging you mustn't have been bird-doging he mustn't have been bird-doging we mustn't have been bird-doging you mustn't have been bird-doging they mustn't have been bird-doging

Interrogative form

Simple form	V-ing form
must I bird-dog? must you bird-dog? must he bird-dog? must we bird-dog? must you bird-dog? must they bird-dog?	must I be bird-doging? must you be bird-doging? must he be bird-doging? must we be bird-doging? must you be bird-doging? must they be bird-doging?
Perfect	V-ing perfect
must I have bird-doged? must you have bird-doged? must he have bird-doged? must we have bird-doged? must you have bird-doged? must they have bird-doged?	must I have been bird-doging? must you have been bird-doging? must he have been bird-doging? must we have been bird-doging? must you have been bird-doging? must they have been bird-doging?

Interro-negative form

Simple form	V-ing form
mustn't I bird-dog? mustn't you bird-dog? mustn't he bird-dog? mustn't we bird-dog? mustn't you bird-dog? mustn't they bird-dog?	mustn't I be bird-doging? mustn't you be bird-doging? mustn't he be bird-doging? mustn't we be bird-doging? mustn't you be bird-doging? mustn't they be bird-doging?
Perfect	V-ing perfect
mustn't I have bird-doged? mustn't you have bird-doged? mustn't he have bird-doged? mustn't we have bird-doged? mustn't you have bird-doged? mustn't they have bird-doged?	mustn't I have been bird-doging? mustn't you have been bird-doging? mustn't he have been bird-doging? mustn't we have been bird-doging? mustn't you have been bird-doging? mustn't they have been bird-doging?