English verb conjugation
MUST REGROUP

Regular verb: regroup - regrouped - regrouped

Affirmation

Simple form	V-ing form
I must regroup you must regroup he must regroup we must regroup you must regroup they must regroup	I must be regrouping you must be regrouping he must be regrouping we must be regrouping you must be regrouping they must be regrouping
Perfect	V-ing perfect
I must have regrouped you must have regrouped he must have regrouped we must have regrouped you must have regrouped they must have regrouped	I must have been regrouping you must have been regrouping he must have been regrouping we must have been regrouping you must have been regrouping they must have been regrouping

Negation

Simple form	V-ing form
I mustn't regroup you mustn't regroup he mustn't regroup we mustn't regroup you mustn't regroup they mustn't regroup	I mustn't be regrouping you mustn't be regrouping he mustn't be regrouping we mustn't be regrouping you mustn't be regrouping they mustn't be regrouping
Perfect	V-ing perfect
I mustn't have regrouped you mustn't have regrouped he mustn't have regrouped we mustn't have regrouped you mustn't have regrouped they mustn't have regrouped	I mustn't have been regrouping you mustn't have been regrouping he mustn't have been regrouping we mustn't have been regrouping you mustn't have been regrouping they mustn't have been regrouping

Interrogative form

Simple form	V-ing form
must I regroup? must you regroup? must he regroup? must we regroup? must you regroup? must they regroup?	must I be regrouping? must you be regrouping? must he be regrouping? must we be regrouping? must you be regrouping? must they be regrouping?
Perfect	V-ing perfect
must I have regrouped? must you have regrouped? must he have regrouped? must we have regrouped? must you have regrouped? must they have regrouped?	must I have been regrouping? must you have been regrouping? must he have been regrouping? must we have been regrouping? must you have been regrouping? must they have been regrouping?

Interro-negative form

Simple form	V-ing form
mustn't I regroup? mustn't you regroup? mustn't he regroup? mustn't we regroup? mustn't you regroup? mustn't they regroup?	mustn't I be regrouping? mustn't you be regrouping? mustn't he be regrouping? mustn't we be regrouping? mustn't you be regrouping? mustn't they be regrouping?
Perfect	V-ing perfect
mustn't I have regrouped? mustn't you have regrouped? mustn't he have regrouped? mustn't we have regrouped? mustn't you have regrouped? mustn't they have regrouped?	mustn't I have been regrouping? mustn't you have been regrouping? mustn't he have been regrouping? mustn't we have been regrouping? mustn't you have been regrouping? mustn't they have been regrouping?