Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must languor you must languor she must languor we must languor you must languor they must languor
V-ing form
I must be languoring you must be languoring she must be languoring we must be languoring you must be languoring they must be languoring
Perfect
I must have languored you must have languored she must have languored we must have languored you must have languored they must have languored
V-ing perfect
I must have been languoring you must have been languoring she must have been languoring we must have been languoring you must have been languoring they must have been languoring
Negation
Simple form
I mustn't languor you mustn't languor she mustn't languor we mustn't languor you mustn't languor they mustn't languor
V-ing form
I mustn't be languoring you mustn't be languoring she mustn't be languoring we mustn't be languoring you mustn't be languoring they mustn't be languoring
Perfect
I mustn't have languored you mustn't have languored she mustn't have languored we mustn't have languored you mustn't have languored they mustn't have languored
V-ing perfect
I mustn't have been languoring you mustn't have been languoring she mustn't have been languoring we mustn't have been languoring you mustn't have been languoring they mustn't have been languoring
Interrogative form
Simple form
must I languor? must you languor? must she languor? must we languor? must you languor? must they languor?
V-ing form
must I be languoring? must you be languoring? must she be languoring? must we be languoring? must you be languoring? must they be languoring?
Perfect
must I have languored? must you have languored? must she have languored? must we have languored? must you have languored? must they have languored?
V-ing perfect
must I have been languoring? must you have been languoring? must she have been languoring? must we have been languoring? must you have been languoring? must they have been languoring?
Interro-negative form
Simple form
mustn't I languor? mustn't you languor? mustn't she languor? mustn't we languor? mustn't you languor? mustn't they languor?
V-ing form
mustn't I be languoring? mustn't you be languoring? mustn't she be languoring? mustn't we be languoring? mustn't you be languoring? mustn't they be languoring?
Perfect
mustn't I have languored? mustn't you have languored? mustn't she have languored? mustn't we have languored? mustn't you have languored? mustn't they have languored?
V-ing perfect
mustn't I have been languoring? mustn't you have been languoring? mustn't she have been languoring? mustn't we have been languoring? mustn't you have been languoring? mustn't they have been languoring?