English verb conjugation
MUST FINISH

Regular verb: finish - finished - finished

Affirmation

Simple form	V-ing form
I must finish you must finish she must finish we must finish you must finish they must finish	I must be finishing you must be finishing she 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 she 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 she 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 she 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 she 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 she 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 she 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 she finish? must we finish? must you finish? must they finish?	must I be finishing? must you be finishing? must she 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 she 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 she 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 she 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 she 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 she 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 she have been finishing? mustn't we have been finishing? mustn't you have been finishing? mustn't they have been finishing?