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 must not troop you must not troop he must not troop we must not troop you must not troop they must not troop	I must not be trooping you must not be trooping he must not be trooping we must not be trooping you must not be trooping they must not be trooping
Perfect	V-ing perfect
I must not have trooped you must not have trooped he must not have trooped we must not have trooped you must not have trooped they must not have trooped	I must not have been trooping you must not have been trooping he must not have been trooping we must not have been trooping you must not have been trooping they must not 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
must I not troop? must you not troop? must he not troop? must we not troop? must you not troop? must they not troop?	must I not be trooping? must you not be trooping? must he not be trooping? must we not be trooping? must you not be trooping? must they not be trooping?
Perfect	V-ing perfect
must I not have trooped? must you not have trooped? must he not have trooped? must we not have trooped? must you not have trooped? must they not have trooped?	must I not have been trooping? must you not have been trooping? must he not have been trooping? must we not have been trooping? must you not have been trooping? must they not have been trooping?