English verb conjugation
MUST ENLIGHTEN

Regular verb: enlighten - enlightened - enlightened

Affirmation

Simple form	V-ing form
I must enlighten you must enlighten he must enlighten we must enlighten you must enlighten they must enlighten	I must be enlightening you must be enlightening he must be enlightening we must be enlightening you must be enlightening they must be enlightening
Perfect	V-ing perfect
I must have enlightened you must have enlightened he must have enlightened we must have enlightened you must have enlightened they must have enlightened	I must have been enlightening you must have been enlightening he must have been enlightening we must have been enlightening you must have been enlightening they must have been enlightening

Negation

Simple form	V-ing form
I must not enlighten you must not enlighten he must not enlighten we must not enlighten you must not enlighten they must not enlighten	I must not be enlightening you must not be enlightening he must not be enlightening we must not be enlightening you must not be enlightening they must not be enlightening
Perfect	V-ing perfect
I must not have enlightened you must not have enlightened he must not have enlightened we must not have enlightened you must not have enlightened they must not have enlightened	I must not have been enlightening you must not have been enlightening he must not have been enlightening we must not have been enlightening you must not have been enlightening they must not have been enlightening

Interrogative form

Simple form	V-ing form
must I enlighten? must you enlighten? must he enlighten? must we enlighten? must you enlighten? must they enlighten?	must I be enlightening? must you be enlightening? must he be enlightening? must we be enlightening? must you be enlightening? must they be enlightening?
Perfect	V-ing perfect
must I have enlightened? must you have enlightened? must he have enlightened? must we have enlightened? must you have enlightened? must they have enlightened?	must I have been enlightening? must you have been enlightening? must he have been enlightening? must we have been enlightening? must you have been enlightening? must they have been enlightening?

Interro-negative form

Simple form	V-ing form
must I not enlighten? must you not enlighten? must he not enlighten? must we not enlighten? must you not enlighten? must they not enlighten?	must I not be enlightening? must you not be enlightening? must he not be enlightening? must we not be enlightening? must you not be enlightening? must they not be enlightening?
Perfect	V-ing perfect
must I not have enlightened? must you not have enlightened? must he not have enlightened? must we not have enlightened? must you not have enlightened? must they not have enlightened?	must I not have been enlightening? must you not have been enlightening? must he not have been enlightening? must we not have been enlightening? must you not have been enlightening? must they not have been enlightening?