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