Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must endure endure you must endure endure he must endure endure we must endure endure you must endure endure they must endure endure
V-ing form
I must be endure enduring you must be endure enduring he must be endure enduring we must be endure enduring you must be endure enduring they must be endure enduring
Perfect
I must have endure endured you must have endure endured he must have endure endured we must have endure endured you must have endure endured they must have endure endured
V-ing perfect
I must have been endure enduring you must have been endure enduring he must have been endure enduring we must have been endure enduring you must have been endure enduring they must have been endure enduring
Negation
Simple form
I must not endure endure you must not endure endure he must not endure endure we must not endure endure you must not endure endure they must not endure endure
V-ing form
I must not be endure enduring you must not be endure enduring he must not be endure enduring we must not be endure enduring you must not be endure enduring they must not be endure enduring
Perfect
I must not have endure endured you must not have endure endured he must not have endure endured we must not have endure endured you must not have endure endured they must not have endure endured
V-ing perfect
I must not have been endure enduring you must not have been endure enduring he must not have been endure enduring we must not have been endure enduring you must not have been endure enduring they must not have been endure enduring
Interrogative form
Simple form
must I endure endure? must you endure endure? must he endure endure? must we endure endure? must you endure endure? must they endure endure?
V-ing form
must I be endure enduring? must you be endure enduring? must he be endure enduring? must we be endure enduring? must you be endure enduring? must they be endure enduring?
Perfect
must I have endure endured? must you have endure endured? must he have endure endured? must we have endure endured? must you have endure endured? must they have endure endured?
V-ing perfect
must I have been endure enduring? must you have been endure enduring? must he have been endure enduring? must we have been endure enduring? must you have been endure enduring? must they have been endure enduring?
Interro-negative form
Simple form
must I not endure endure? must you not endure endure? must he not endure endure? must we not endure endure? must you not endure endure? must they not endure endure?
V-ing form
must I not be endure enduring? must you not be endure enduring? must he not be endure enduring? must we not be endure enduring? must you not be endure enduring? must they not be endure enduring?
Perfect
must I not have endure endured? must you not have endure endured? must he not have endure endured? must we not have endure endured? must you not have endure endured? must they not have endure endured?
V-ing perfect
must I not have been endure enduring? must you not have been endure enduring? must he not have been endure enduring? must we not have been endure enduring? must you not have been endure enduring? must they not have been endure enduring?