English verb conjugation
MUST SHAMPOO

Regular verb: shampoo - shampooed - shampooed

Affirmation

Simple form	V-ing form
I must shampoo you must shampoo he must shampoo we must shampoo you must shampoo they must shampoo	I must be shampooing you must be shampooing he must be shampooing we must be shampooing you must be shampooing they must be shampooing
Perfect	V-ing perfect
I must have shampooed you must have shampooed he must have shampooed we must have shampooed you must have shampooed they must have shampooed	I must have been shampooing you must have been shampooing he must have been shampooing we must have been shampooing you must have been shampooing they must have been shampooing

Negation

Simple form	V-ing form
I mustn't shampoo you mustn't shampoo he mustn't shampoo we mustn't shampoo you mustn't shampoo they mustn't shampoo	I mustn't be shampooing you mustn't be shampooing he mustn't be shampooing we mustn't be shampooing you mustn't be shampooing they mustn't be shampooing
Perfect	V-ing perfect
I mustn't have shampooed you mustn't have shampooed he mustn't have shampooed we mustn't have shampooed you mustn't have shampooed they mustn't have shampooed	I mustn't have been shampooing you mustn't have been shampooing he mustn't have been shampooing we mustn't have been shampooing you mustn't have been shampooing they mustn't have been shampooing

Interrogative form

Simple form	V-ing form
must I shampoo? must you shampoo? must he shampoo? must we shampoo? must you shampoo? must they shampoo?	must I be shampooing? must you be shampooing? must he be shampooing? must we be shampooing? must you be shampooing? must they be shampooing?
Perfect	V-ing perfect
must I have shampooed? must you have shampooed? must he have shampooed? must we have shampooed? must you have shampooed? must they have shampooed?	must I have been shampooing? must you have been shampooing? must he have been shampooing? must we have been shampooing? must you have been shampooing? must they have been shampooing?

Interro-negative form

Simple form	V-ing form
mustn't I shampoo? mustn't you shampoo? mustn't he shampoo? mustn't we shampoo? mustn't you shampoo? mustn't they shampoo?	mustn't I be shampooing? mustn't you be shampooing? mustn't he be shampooing? mustn't we be shampooing? mustn't you be shampooing? mustn't they be shampooing?
Perfect	V-ing perfect
mustn't I have shampooed? mustn't you have shampooed? mustn't he have shampooed? mustn't we have shampooed? mustn't you have shampooed? mustn't they have shampooed?	mustn't I have been shampooing? mustn't you have been shampooing? mustn't he have been shampooing? mustn't we have been shampooing? mustn't you have been shampooing? mustn't they have been shampooing?