English verb conjugation
MUST BROOD

Regular verb: brood - brooded - brooded

Affirmation

Simple form	V-ing form
I must brood you must brood he must brood we must brood you must brood they must brood	I must be brooding you must be brooding he must be brooding we must be brooding you must be brooding they must be brooding
Perfect	V-ing perfect
I must have brooded you must have brooded he must have brooded we must have brooded you must have brooded they must have brooded	I must have been brooding you must have been brooding he must have been brooding we must have been brooding you must have been brooding they must have been brooding

Negation

Simple form	V-ing form
I mustn't brood you mustn't brood he mustn't brood we mustn't brood you mustn't brood they mustn't brood	I mustn't be brooding you mustn't be brooding he mustn't be brooding we mustn't be brooding you mustn't be brooding they mustn't be brooding
Perfect	V-ing perfect
I mustn't have brooded you mustn't have brooded he mustn't have brooded we mustn't have brooded you mustn't have brooded they mustn't have brooded	I mustn't have been brooding you mustn't have been brooding he mustn't have been brooding we mustn't have been brooding you mustn't have been brooding they mustn't have been brooding

Interrogative form

Simple form	V-ing form
must I brood? must you brood? must he brood? must we brood? must you brood? must they brood?	must I be brooding? must you be brooding? must he be brooding? must we be brooding? must you be brooding? must they be brooding?
Perfect	V-ing perfect
must I have brooded? must you have brooded? must he have brooded? must we have brooded? must you have brooded? must they have brooded?	must I have been brooding? must you have been brooding? must he have been brooding? must we have been brooding? must you have been brooding? must they have been brooding?

Interro-negative form

Simple form	V-ing form
mustn't I brood? mustn't you brood? mustn't he brood? mustn't we brood? mustn't you brood? mustn't they brood?	mustn't I be brooding? mustn't you be brooding? mustn't he be brooding? mustn't we be brooding? mustn't you be brooding? mustn't they be brooding?
Perfect	V-ing perfect
mustn't I have brooded? mustn't you have brooded? mustn't he have brooded? mustn't we have brooded? mustn't you have brooded? mustn't they have brooded?	mustn't I have been brooding? mustn't you have been brooding? mustn't he have been brooding? mustn't we have been brooding? mustn't you have been brooding? mustn't they have been brooding?