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 must not song you must not song he must not song we must not song you must not song they must not song	I must not be songing you must not be songing he must not be songing we must not be songing you must not be songing they must not be songing
Perfect	V-ing perfect
I must not have songed you must not have songed he must not have songed we must not have songed you must not have songed they must not have songed	I must not have been songing you must not have been songing he must not have been songing we must not have been songing you must not have been songing they must not 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
must I not song? must you not song? must he not song? must we not song? must you not song? must they not song?	must I not be songing? must you not be songing? must he not be songing? must we not be songing? must you not be songing? must they not be songing?
Perfect	V-ing perfect
must I not have songed? must you not have songed? must he not have songed? must we not have songed? must you not have songed? must they not have songed?	must I not have been songing? must you not have been songing? must he not have been songing? must we not have been songing? must you not have been songing? must they not have been songing?