English verb conjugation
MUST ENVISION

Regular verb: envision - envisioned - envisioned

Affirmation

Simple form	V-ing form
I must envision you must envision he must envision we must envision you must envision they must envision	I must be envisioning you must be envisioning he must be envisioning we must be envisioning you must be envisioning they must be envisioning
Perfect	V-ing perfect
I must have envisioned you must have envisioned he must have envisioned we must have envisioned you must have envisioned they must have envisioned	I must have been envisioning you must have been envisioning he must have been envisioning we must have been envisioning you must have been envisioning they must have been envisioning

Negation

Simple form	V-ing form
I mustn't envision you mustn't envision he mustn't envision we mustn't envision you mustn't envision they mustn't envision	I mustn't be envisioning you mustn't be envisioning he mustn't be envisioning we mustn't be envisioning you mustn't be envisioning they mustn't be envisioning
Perfect	V-ing perfect
I mustn't have envisioned you mustn't have envisioned he mustn't have envisioned we mustn't have envisioned you mustn't have envisioned they mustn't have envisioned	I mustn't have been envisioning you mustn't have been envisioning he mustn't have been envisioning we mustn't have been envisioning you mustn't have been envisioning they mustn't have been envisioning

Interrogative form

Simple form	V-ing form
must I envision? must you envision? must he envision? must we envision? must you envision? must they envision?	must I be envisioning? must you be envisioning? must he be envisioning? must we be envisioning? must you be envisioning? must they be envisioning?
Perfect	V-ing perfect
must I have envisioned? must you have envisioned? must he have envisioned? must we have envisioned? must you have envisioned? must they have envisioned?	must I have been envisioning? must you have been envisioning? must he have been envisioning? must we have been envisioning? must you have been envisioning? must they have been envisioning?

Interro-negative form

Simple form	V-ing form
mustn't I envision? mustn't you envision? mustn't he envision? mustn't we envision? mustn't you envision? mustn't they envision?	mustn't I be envisioning? mustn't you be envisioning? mustn't he be envisioning? mustn't we be envisioning? mustn't you be envisioning? mustn't they be envisioning?
Perfect	V-ing perfect
mustn't I have envisioned? mustn't you have envisioned? mustn't he have envisioned? mustn't we have envisioned? mustn't you have envisioned? mustn't they have envisioned?	mustn't I have been envisioning? mustn't you have been envisioning? mustn't he have been envisioning? mustn't we have been envisioning? mustn't you have been envisioning? mustn't they have been envisioning?