English verb conjugation
MUST FALSIFY

Regular verb: falsify - falsified - falsified

Affirmation

Simple form	V-ing form
I must falsify you must falsify she must falsify we must falsify you must falsify they must falsify	I must be falsifying you must be falsifying she must be falsifying we must be falsifying you must be falsifying they must be falsifying
Perfect	V-ing perfect
I must have falsified you must have falsified she must have falsified we must have falsified you must have falsified they must have falsified	I must have been falsifying you must have been falsifying she must have been falsifying we must have been falsifying you must have been falsifying they must have been falsifying

Negation

Simple form	V-ing form
I mustn't falsify you mustn't falsify she mustn't falsify we mustn't falsify you mustn't falsify they mustn't falsify	I mustn't be falsifying you mustn't be falsifying she mustn't be falsifying we mustn't be falsifying you mustn't be falsifying they mustn't be falsifying
Perfect	V-ing perfect
I mustn't have falsified you mustn't have falsified she mustn't have falsified we mustn't have falsified you mustn't have falsified they mustn't have falsified	I mustn't have been falsifying you mustn't have been falsifying she mustn't have been falsifying we mustn't have been falsifying you mustn't have been falsifying they mustn't have been falsifying

Interrogative form

Simple form	V-ing form
must I falsify? must you falsify? must she falsify? must we falsify? must you falsify? must they falsify?	must I be falsifying? must you be falsifying? must she be falsifying? must we be falsifying? must you be falsifying? must they be falsifying?
Perfect	V-ing perfect
must I have falsified? must you have falsified? must she have falsified? must we have falsified? must you have falsified? must they have falsified?	must I have been falsifying? must you have been falsifying? must she have been falsifying? must we have been falsifying? must you have been falsifying? must they have been falsifying?

Interro-negative form

Simple form	V-ing form
mustn't I falsify? mustn't you falsify? mustn't she falsify? mustn't we falsify? mustn't you falsify? mustn't they falsify?	mustn't I be falsifying? mustn't you be falsifying? mustn't she be falsifying? mustn't we be falsifying? mustn't you be falsifying? mustn't they be falsifying?
Perfect	V-ing perfect
mustn't I have falsified? mustn't you have falsified? mustn't she have falsified? mustn't we have falsified? mustn't you have falsified? mustn't they have falsified?	mustn't I have been falsifying? mustn't you have been falsifying? mustn't she have been falsifying? mustn't we have been falsifying? mustn't you have been falsifying? mustn't they have been falsifying?