English verb conjugation
MUST GO

Irregular verb: go - went - gone

Affirmation

Simple form	V-ing form
I must go you must go he must go we must go you must go they must go	I must be going you must be going he must be going we must be going you must be going they must be going
Perfect	V-ing perfect
I must have gone you must have gone he must have gone we must have gone you must have gone they must have gone	I must have been going you must have been going he must have been going we must have been going you must have been going they must have been going

Negation

Simple form	V-ing form
I mustn't go you mustn't go he mustn't go we mustn't go you mustn't go they mustn't go	I mustn't be going you mustn't be going he mustn't be going we mustn't be going you mustn't be going they mustn't be going
Perfect	V-ing perfect
I mustn't have gone you mustn't have gone he mustn't have gone we mustn't have gone you mustn't have gone they mustn't have gone	I mustn't have been going you mustn't have been going he mustn't have been going we mustn't have been going you mustn't have been going they mustn't have been going

Interrogative form

Simple form	V-ing form
must I go? must you go? must he go? must we go? must you go? must they go?	must I be going? must you be going? must he be going? must we be going? must you be going? must they be going?
Perfect	V-ing perfect
must I have gone? must you have gone? must he have gone? must we have gone? must you have gone? must they have gone?	must I have been going? must you have been going? must he have been going? must we have been going? must you have been going? must they have been going?

Interro-negative form

Simple form	V-ing form
mustn't I go? mustn't you go? mustn't he go? mustn't we go? mustn't you go? mustn't they go?	mustn't I be going? mustn't you be going? mustn't he be going? mustn't we be going? mustn't you be going? mustn't they be going?
Perfect	V-ing perfect
mustn't I have gone? mustn't you have gone? mustn't he have gone? mustn't we have gone? mustn't you have gone? mustn't they have gone?	mustn't I have been going? mustn't you have been going? mustn't he have been going? mustn't we have been going? mustn't you have been going? mustn't they have been going?