English verb conjugation
MUST ESTIVATE

Regular verb: estivate - estivated - estivated

Affirmation

Simple form	V-ing form
I must estivate you must estivate she must estivate we must estivate you must estivate they must estivate	I must be estivating you must be estivating she 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 she 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 she 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 must not estivate you must not estivate she must not estivate we must not estivate you must not estivate they must not estivate	I must not be estivating you must not be estivating she must not be estivating we must not be estivating you must not be estivating they must not be estivating
Perfect	V-ing perfect
I must not have estivated you must not have estivated she must not have estivated we must not have estivated you must not have estivated they must not have estivated	I must not have been estivating you must not have been estivating she must not have been estivating we must not have been estivating you must not have been estivating they must not have been estivating

Interrogative form

Simple form	V-ing form
must I estivate? must you estivate? must she estivate? must we estivate? must you estivate? must they estivate?	must I be estivating? must you be estivating? must she 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 she 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 she 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
must I not estivate? must you not estivate? must she not estivate? must we not estivate? must you not estivate? must they not estivate?	must I not be estivating? must you not be estivating? must she not be estivating? must we not be estivating? must you not be estivating? must they not be estivating?
Perfect	V-ing perfect
must I not have estivated? must you not have estivated? must she not have estivated? must we not have estivated? must you not have estivated? must they not have estivated?	must I not have been estivating? must you not have been estivating? must she not have been estivating? must we not have been estivating? must you not have been estivating? must they not have been estivating?