English verb conjugation
MUST FINISH

Regular verb: finish - finished - finished

Affirmation

Simple form	V-ing form
I must finish you must finish he must finish we must finish you must finish they must finish	I must be finishing you must be finishing he must be finishing we must be finishing you must be finishing they must be finishing
Perfect	V-ing perfect
I must have finished you must have finished he must have finished we must have finished you must have finished they must have finished	I must have been finishing you must have been finishing he must have been finishing we must have been finishing you must have been finishing they must have been finishing

Negation

Simple form	V-ing form
I mustn't finish you mustn't finish he mustn't finish we mustn't finish you mustn't finish they mustn't finish	I mustn't be finishing you mustn't be finishing he mustn't be finishing we mustn't be finishing you mustn't be finishing they mustn't be finishing
Perfect	V-ing perfect
I mustn't have finished you mustn't have finished he mustn't have finished we mustn't have finished you mustn't have finished they mustn't have finished	I mustn't have been finishing you mustn't have been finishing he mustn't have been finishing we mustn't have been finishing you mustn't have been finishing they mustn't have been finishing

Interrogative form

Simple form	V-ing form
must I finish? must you finish? must he finish? must we finish? must you finish? must they finish?	must I be finishing? must you be finishing? must he be finishing? must we be finishing? must you be finishing? must they be finishing?
Perfect	V-ing perfect
must I have finished? must you have finished? must he have finished? must we have finished? must you have finished? must they have finished?	must I have been finishing? must you have been finishing? must he have been finishing? must we have been finishing? must you have been finishing? must they have been finishing?

Interro-negative form

Simple form	V-ing form
mustn't I finish? mustn't you finish? mustn't he finish? mustn't we finish? mustn't you finish? mustn't they finish?	mustn't I be finishing? mustn't you be finishing? mustn't he be finishing? mustn't we be finishing? mustn't you be finishing? mustn't they be finishing?
Perfect	V-ing perfect
mustn't I have finished? mustn't you have finished? mustn't he have finished? mustn't we have finished? mustn't you have finished? mustn't they have finished?	mustn't I have been finishing? mustn't you have been finishing? mustn't he have been finishing? mustn't we have been finishing? mustn't you have been finishing? mustn't they have been finishing?