English verb conjugation
MUST DISAGREE

Regular verb: disagree - disagreed - disagreed

Affirmation

Simple form	V-ing form
I must disagree you must disagree he must disagree we must disagree you must disagree they must disagree	I must be disagreeing you must be disagreeing he must be disagreeing we must be disagreeing you must be disagreeing they must be disagreeing
Perfect	V-ing perfect
I must have disagreed you must have disagreed he must have disagreed we must have disagreed you must have disagreed they must have disagreed	I must have been disagreeing you must have been disagreeing he must have been disagreeing we must have been disagreeing you must have been disagreeing they must have been disagreeing

Negation

Simple form	V-ing form
I mustn't disagree you mustn't disagree he mustn't disagree we mustn't disagree you mustn't disagree they mustn't disagree	I mustn't be disagreeing you mustn't be disagreeing he mustn't be disagreeing we mustn't be disagreeing you mustn't be disagreeing they mustn't be disagreeing
Perfect	V-ing perfect
I mustn't have disagreed you mustn't have disagreed he mustn't have disagreed we mustn't have disagreed you mustn't have disagreed they mustn't have disagreed	I mustn't have been disagreeing you mustn't have been disagreeing he mustn't have been disagreeing we mustn't have been disagreeing you mustn't have been disagreeing they mustn't have been disagreeing

Interrogative form

Simple form	V-ing form
must I disagree? must you disagree? must he disagree? must we disagree? must you disagree? must they disagree?	must I be disagreeing? must you be disagreeing? must he be disagreeing? must we be disagreeing? must you be disagreeing? must they be disagreeing?
Perfect	V-ing perfect
must I have disagreed? must you have disagreed? must he have disagreed? must we have disagreed? must you have disagreed? must they have disagreed?	must I have been disagreeing? must you have been disagreeing? must he have been disagreeing? must we have been disagreeing? must you have been disagreeing? must they have been disagreeing?

Interro-negative form

Simple form	V-ing form
mustn't I disagree? mustn't you disagree? mustn't he disagree? mustn't we disagree? mustn't you disagree? mustn't they disagree?	mustn't I be disagreeing? mustn't you be disagreeing? mustn't he be disagreeing? mustn't we be disagreeing? mustn't you be disagreeing? mustn't they be disagreeing?
Perfect	V-ing perfect
mustn't I have disagreed? mustn't you have disagreed? mustn't he have disagreed? mustn't we have disagreed? mustn't you have disagreed? mustn't they have disagreed?	mustn't I have been disagreeing? mustn't you have been disagreeing? mustn't he have been disagreeing? mustn't we have been disagreeing? mustn't you have been disagreeing? mustn't they have been disagreeing?