English verb conjugation
MUST SONG

Regular verb: song - songed - songed

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I must song you must song he must song we must song you must song they must song	I must be songing you must be songing he must be songing we must be songing you must be songing they must be songing
Perfect	V-ing perfect
I must have songed you must have songed he must have songed we must have songed you must have songed they must have songed	I must have been songing you must have been songing he must have been songing we must have been songing you must have been songing they must have been songing

Negation

Simple form	V-ing form
I mustn't song you mustn't song he mustn't song we mustn't song you mustn't song they mustn't song	I mustn't be songing you mustn't be songing he mustn't be songing we mustn't be songing you mustn't be songing they mustn't be songing
Perfect	V-ing perfect
I mustn't have songed you mustn't have songed he mustn't have songed we mustn't have songed you mustn't have songed they mustn't have songed	I mustn't have been songing you mustn't have been songing he mustn't have been songing we mustn't have been songing you mustn't have been songing they mustn't have been songing

Interrogative form

Simple form	V-ing form
must I song? must you song? must he song? must we song? must you song? must they song?	must I be songing? must you be songing? must he be songing? must we be songing? must you be songing? must they be songing?
Perfect	V-ing perfect
must I have songed? must you have songed? must he have songed? must we have songed? must you have songed? must they have songed?	must I have been songing? must you have been songing? must he have been songing? must we have been songing? must you have been songing? must they have been songing?

Interro-negative form

Simple form	V-ing form
mustn't I song? mustn't you song? mustn't he song? mustn't we song? mustn't you song? mustn't they song?	mustn't I be songing? mustn't you be songing? mustn't he be songing? mustn't we be songing? mustn't you be songing? mustn't they be songing?
Perfect	V-ing perfect
mustn't I have songed? mustn't you have songed? mustn't he have songed? mustn't we have songed? mustn't you have songed? mustn't they have songed?	mustn't I have been songing? mustn't you have been songing? mustn't he have been songing? mustn't we have been songing? mustn't you have been songing? mustn't they have been songing?