English verb conjugation
MUST PAINT

Regular verb: paint - painted - painted

Affirmation

Simple form	V-ing form
I must paint you must paint he must paint we must paint you must paint they must paint	I must be painting you must be painting he must be painting we must be painting you must be painting they must be painting
Perfect	V-ing perfect
I must have painted you must have painted he must have painted we must have painted you must have painted they must have painted	I must have been painting you must have been painting he must have been painting we must have been painting you must have been painting they must have been painting

Negation

Simple form	V-ing form
I mustn't paint you mustn't paint he mustn't paint we mustn't paint you mustn't paint they mustn't paint	I mustn't be painting you mustn't be painting he mustn't be painting we mustn't be painting you mustn't be painting they mustn't be painting
Perfect	V-ing perfect
I mustn't have painted you mustn't have painted he mustn't have painted we mustn't have painted you mustn't have painted they mustn't have painted	I mustn't have been painting you mustn't have been painting he mustn't have been painting we mustn't have been painting you mustn't have been painting they mustn't have been painting

Interrogative form

Simple form	V-ing form
must I paint? must you paint? must he paint? must we paint? must you paint? must they paint?	must I be painting? must you be painting? must he be painting? must we be painting? must you be painting? must they be painting?
Perfect	V-ing perfect
must I have painted? must you have painted? must he have painted? must we have painted? must you have painted? must they have painted?	must I have been painting? must you have been painting? must he have been painting? must we have been painting? must you have been painting? must they have been painting?

Interro-negative form

Simple form	V-ing form
mustn't I paint? mustn't you paint? mustn't he paint? mustn't we paint? mustn't you paint? mustn't they paint?	mustn't I be painting? mustn't you be painting? mustn't he be painting? mustn't we be painting? mustn't you be painting? mustn't they be painting?
Perfect	V-ing perfect
mustn't I have painted? mustn't you have painted? mustn't he have painted? mustn't we have painted? mustn't you have painted? mustn't they have painted?	mustn't I have been painting? mustn't you have been painting? mustn't he have been painting? mustn't we have been painting? mustn't you have been painting? mustn't they have been painting?