English verb conjugation
MUST DISCONFIRM

Regular verb: disconfirm - disconfirmed - disconfirmed

Affirmation

Simple form	V-ing form
I must disconfirm you must disconfirm he must disconfirm we must disconfirm you must disconfirm they must disconfirm	I must be disconfirming you must be disconfirming he must be disconfirming we must be disconfirming you must be disconfirming they must be disconfirming
Perfect	V-ing perfect
I must have disconfirmed you must have disconfirmed he must have disconfirmed we must have disconfirmed you must have disconfirmed they must have disconfirmed	I must have been disconfirming you must have been disconfirming he must have been disconfirming we must have been disconfirming you must have been disconfirming they must have been disconfirming

Negation

Simple form	V-ing form
I mustn't disconfirm you mustn't disconfirm he mustn't disconfirm we mustn't disconfirm you mustn't disconfirm they mustn't disconfirm	I mustn't be disconfirming you mustn't be disconfirming he mustn't be disconfirming we mustn't be disconfirming you mustn't be disconfirming they mustn't be disconfirming
Perfect	V-ing perfect
I mustn't have disconfirmed you mustn't have disconfirmed he mustn't have disconfirmed we mustn't have disconfirmed you mustn't have disconfirmed they mustn't have disconfirmed	I mustn't have been disconfirming you mustn't have been disconfirming he mustn't have been disconfirming we mustn't have been disconfirming you mustn't have been disconfirming they mustn't have been disconfirming

Interrogative form

Simple form	V-ing form
must I disconfirm? must you disconfirm? must he disconfirm? must we disconfirm? must you disconfirm? must they disconfirm?	must I be disconfirming? must you be disconfirming? must he be disconfirming? must we be disconfirming? must you be disconfirming? must they be disconfirming?
Perfect	V-ing perfect
must I have disconfirmed? must you have disconfirmed? must he have disconfirmed? must we have disconfirmed? must you have disconfirmed? must they have disconfirmed?	must I have been disconfirming? must you have been disconfirming? must he have been disconfirming? must we have been disconfirming? must you have been disconfirming? must they have been disconfirming?

Interro-negative form

Simple form	V-ing form
mustn't I disconfirm? mustn't you disconfirm? mustn't he disconfirm? mustn't we disconfirm? mustn't you disconfirm? mustn't they disconfirm?	mustn't I be disconfirming? mustn't you be disconfirming? mustn't he be disconfirming? mustn't we be disconfirming? mustn't you be disconfirming? mustn't they be disconfirming?
Perfect	V-ing perfect
mustn't I have disconfirmed? mustn't you have disconfirmed? mustn't he have disconfirmed? mustn't we have disconfirmed? mustn't you have disconfirmed? mustn't they have disconfirmed?	mustn't I have been disconfirming? mustn't you have been disconfirming? mustn't he have been disconfirming? mustn't we have been disconfirming? mustn't you have been disconfirming? mustn't they have been disconfirming?