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