English verb conjugation
MUST TROOP

Regular verb: troop - trooped - trooped

Affirmation

Simple form	V-ing form
I must troop you must troop he must troop we must troop you must troop they must troop	I must be trooping you must be trooping he must be trooping we must be trooping you must be trooping they must be trooping
Perfect	V-ing perfect
I must have trooped you must have trooped he must have trooped we must have trooped you must have trooped they must have trooped	I must have been trooping you must have been trooping he must have been trooping we must have been trooping you must have been trooping they must have been trooping

Negation

Simple form	V-ing form
I mustn't troop you mustn't troop he mustn't troop we mustn't troop you mustn't troop they mustn't troop	I mustn't be trooping you mustn't be trooping he mustn't be trooping we mustn't be trooping you mustn't be trooping they mustn't be trooping
Perfect	V-ing perfect
I mustn't have trooped you mustn't have trooped he mustn't have trooped we mustn't have trooped you mustn't have trooped they mustn't have trooped	I mustn't have been trooping you mustn't have been trooping he mustn't have been trooping we mustn't have been trooping you mustn't have been trooping they mustn't have been trooping

Interrogative form

Simple form	V-ing form
must I troop? must you troop? must he troop? must we troop? must you troop? must they troop?	must I be trooping? must you be trooping? must he be trooping? must we be trooping? must you be trooping? must they be trooping?
Perfect	V-ing perfect
must I have trooped? must you have trooped? must he have trooped? must we have trooped? must you have trooped? must they have trooped?	must I have been trooping? must you have been trooping? must he have been trooping? must we have been trooping? must you have been trooping? must they have been trooping?

Interro-negative form

Simple form	V-ing form
mustn't I troop? mustn't you troop? mustn't he troop? mustn't we troop? mustn't you troop? mustn't they troop?	mustn't I be trooping? mustn't you be trooping? mustn't he be trooping? mustn't we be trooping? mustn't you be trooping? mustn't they be trooping?
Perfect	V-ing perfect
mustn't I have trooped? mustn't you have trooped? mustn't he have trooped? mustn't we have trooped? mustn't you have trooped? mustn't they have trooped?	mustn't I have been trooping? mustn't you have been trooping? mustn't he have been trooping? mustn't we have been trooping? mustn't you have been trooping? mustn't they have been trooping?