English verb conjugation
MUST BOO-HOO

Regular verb: boo-hoo - boo-hooed - boo-hooed

Affirmation

Simple form	V-ing form
I must boo-hoo you must boo-hoo he must boo-hoo we must boo-hoo you must boo-hoo they must boo-hoo	I must be boo-hooing you must be boo-hooing he must be boo-hooing we must be boo-hooing you must be boo-hooing they must be boo-hooing
Perfect	V-ing perfect
I must have boo-hooed you must have boo-hooed he must have boo-hooed we must have boo-hooed you must have boo-hooed they must have boo-hooed	I must have been boo-hooing you must have been boo-hooing he must have been boo-hooing we must have been boo-hooing you must have been boo-hooing they must have been boo-hooing

Negation

Simple form	V-ing form
I mustn't boo-hoo you mustn't boo-hoo he mustn't boo-hoo we mustn't boo-hoo you mustn't boo-hoo they mustn't boo-hoo	I mustn't be boo-hooing you mustn't be boo-hooing he mustn't be boo-hooing we mustn't be boo-hooing you mustn't be boo-hooing they mustn't be boo-hooing
Perfect	V-ing perfect
I mustn't have boo-hooed you mustn't have boo-hooed he mustn't have boo-hooed we mustn't have boo-hooed you mustn't have boo-hooed they mustn't have boo-hooed	I mustn't have been boo-hooing you mustn't have been boo-hooing he mustn't have been boo-hooing we mustn't have been boo-hooing you mustn't have been boo-hooing they mustn't have been boo-hooing

Interrogative form

Simple form	V-ing form
must I boo-hoo? must you boo-hoo? must he boo-hoo? must we boo-hoo? must you boo-hoo? must they boo-hoo?	must I be boo-hooing? must you be boo-hooing? must he be boo-hooing? must we be boo-hooing? must you be boo-hooing? must they be boo-hooing?
Perfect	V-ing perfect
must I have boo-hooed? must you have boo-hooed? must he have boo-hooed? must we have boo-hooed? must you have boo-hooed? must they have boo-hooed?	must I have been boo-hooing? must you have been boo-hooing? must he have been boo-hooing? must we have been boo-hooing? must you have been boo-hooing? must they have been boo-hooing?

Interro-negative form

Simple form	V-ing form
mustn't I boo-hoo? mustn't you boo-hoo? mustn't he boo-hoo? mustn't we boo-hoo? mustn't you boo-hoo? mustn't they boo-hoo?	mustn't I be boo-hooing? mustn't you be boo-hooing? mustn't he be boo-hooing? mustn't we be boo-hooing? mustn't you be boo-hooing? mustn't they be boo-hooing?
Perfect	V-ing perfect
mustn't I have boo-hooed? mustn't you have boo-hooed? mustn't he have boo-hooed? mustn't we have boo-hooed? mustn't you have boo-hooed? mustn't they have boo-hooed?	mustn't I have been boo-hooing? mustn't you have been boo-hooing? mustn't he have been boo-hooing? mustn't we have been boo-hooing? mustn't you have been boo-hooing? mustn't they have been boo-hooing?