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