English verb conjugation
MUST ESTIVATE

Regular verb: estivate - estivated - estivated

Affirmation

Simple form	V-ing form
I must estivate you must estivate he must estivate we must estivate you must estivate they must estivate	I must be estivating you must be estivating he must be estivating we must be estivating you must be estivating they must be estivating
Perfect	V-ing perfect
I must have estivated you must have estivated he must have estivated we must have estivated you must have estivated they must have estivated	I must have been estivating you must have been estivating he must have been estivating we must have been estivating you must have been estivating they must have been estivating

Negation

Simple form	V-ing form
I mustn't estivate you mustn't estivate he mustn't estivate we mustn't estivate you mustn't estivate they mustn't estivate	I mustn't be estivating you mustn't be estivating he mustn't be estivating we mustn't be estivating you mustn't be estivating they mustn't be estivating
Perfect	V-ing perfect
I mustn't have estivated you mustn't have estivated he mustn't have estivated we mustn't have estivated you mustn't have estivated they mustn't have estivated	I mustn't have been estivating you mustn't have been estivating he mustn't have been estivating we mustn't have been estivating you mustn't have been estivating they mustn't have been estivating

Interrogative form

Simple form	V-ing form
must I estivate? must you estivate? must he estivate? must we estivate? must you estivate? must they estivate?	must I be estivating? must you be estivating? must he be estivating? must we be estivating? must you be estivating? must they be estivating?
Perfect	V-ing perfect
must I have estivated? must you have estivated? must he have estivated? must we have estivated? must you have estivated? must they have estivated?	must I have been estivating? must you have been estivating? must he have been estivating? must we have been estivating? must you have been estivating? must they have been estivating?

Interro-negative form

Simple form	V-ing form
mustn't I estivate? mustn't you estivate? mustn't he estivate? mustn't we estivate? mustn't you estivate? mustn't they estivate?	mustn't I be estivating? mustn't you be estivating? mustn't he be estivating? mustn't we be estivating? mustn't you be estivating? mustn't they be estivating?
Perfect	V-ing perfect
mustn't I have estivated? mustn't you have estivated? mustn't he have estivated? mustn't we have estivated? mustn't you have estivated? mustn't they have estivated?	mustn't I have been estivating? mustn't you have been estivating? mustn't he have been estivating? mustn't we have been estivating? mustn't you have been estivating? mustn't they have been estivating?