English verb conjugation
MUST UNDERREPORT

Regular verb: underreport - underreported - underreported

Affirmation

Simple form	V-ing form
I must underreport you must underreport she must underreport we must underreport you must underreport they must underreport	I must be underreporting you must be underreporting she must be underreporting we must be underreporting you must be underreporting they must be underreporting
Perfect	V-ing perfect
I must have underreported you must have underreported she must have underreported we must have underreported you must have underreported they must have underreported	I must have been underreporting you must have been underreporting she must have been underreporting we must have been underreporting you must have been underreporting they must have been underreporting

Negation

Simple form	V-ing form
I mustn't underreport you mustn't underreport she mustn't underreport we mustn't underreport you mustn't underreport they mustn't underreport	I mustn't be underreporting you mustn't be underreporting she mustn't be underreporting we mustn't be underreporting you mustn't be underreporting they mustn't be underreporting
Perfect	V-ing perfect
I mustn't have underreported you mustn't have underreported she mustn't have underreported we mustn't have underreported you mustn't have underreported they mustn't have underreported	I mustn't have been underreporting you mustn't have been underreporting she mustn't have been underreporting we mustn't have been underreporting you mustn't have been underreporting they mustn't have been underreporting

Interrogative form

Simple form	V-ing form
must I underreport? must you underreport? must she underreport? must we underreport? must you underreport? must they underreport?	must I be underreporting? must you be underreporting? must she be underreporting? must we be underreporting? must you be underreporting? must they be underreporting?
Perfect	V-ing perfect
must I have underreported? must you have underreported? must she have underreported? must we have underreported? must you have underreported? must they have underreported?	must I have been underreporting? must you have been underreporting? must she have been underreporting? must we have been underreporting? must you have been underreporting? must they have been underreporting?

Interro-negative form

Simple form	V-ing form
mustn't I underreport? mustn't you underreport? mustn't she underreport? mustn't we underreport? mustn't you underreport? mustn't they underreport?	mustn't I be underreporting? mustn't you be underreporting? mustn't she be underreporting? mustn't we be underreporting? mustn't you be underreporting? mustn't they be underreporting?
Perfect	V-ing perfect
mustn't I have underreported? mustn't you have underreported? mustn't she have underreported? mustn't we have underreported? mustn't you have underreported? mustn't they have underreported?	mustn't I have been underreporting? mustn't you have been underreporting? mustn't she have been underreporting? mustn't we have been underreporting? mustn't you have been underreporting? mustn't they have been underreporting?