English verb conjugation
MUST LUCUBRATE

Regular verb: lucubrate - lucubrated - lucubrated

Affirmation

Simple form	V-ing form
I must lucubrate you must lucubrate he must lucubrate we must lucubrate you must lucubrate they must lucubrate	I must be lucubrating you must be lucubrating he must be lucubrating we must be lucubrating you must be lucubrating they must be lucubrating
Perfect	V-ing perfect
I must have lucubrated you must have lucubrated he must have lucubrated we must have lucubrated you must have lucubrated they must have lucubrated	I must have been lucubrating you must have been lucubrating he must have been lucubrating we must have been lucubrating you must have been lucubrating they must have been lucubrating

Negation

Simple form	V-ing form
I mustn't lucubrate you mustn't lucubrate he mustn't lucubrate we mustn't lucubrate you mustn't lucubrate they mustn't lucubrate	I mustn't be lucubrating you mustn't be lucubrating he mustn't be lucubrating we mustn't be lucubrating you mustn't be lucubrating they mustn't be lucubrating
Perfect	V-ing perfect
I mustn't have lucubrated you mustn't have lucubrated he mustn't have lucubrated we mustn't have lucubrated you mustn't have lucubrated they mustn't have lucubrated	I mustn't have been lucubrating you mustn't have been lucubrating he mustn't have been lucubrating we mustn't have been lucubrating you mustn't have been lucubrating they mustn't have been lucubrating

Interrogative form

Simple form	V-ing form
must I lucubrate? must you lucubrate? must he lucubrate? must we lucubrate? must you lucubrate? must they lucubrate?	must I be lucubrating? must you be lucubrating? must he be lucubrating? must we be lucubrating? must you be lucubrating? must they be lucubrating?
Perfect	V-ing perfect
must I have lucubrated? must you have lucubrated? must he have lucubrated? must we have lucubrated? must you have lucubrated? must they have lucubrated?	must I have been lucubrating? must you have been lucubrating? must he have been lucubrating? must we have been lucubrating? must you have been lucubrating? must they have been lucubrating?

Interro-negative form

Simple form	V-ing form
mustn't I lucubrate? mustn't you lucubrate? mustn't he lucubrate? mustn't we lucubrate? mustn't you lucubrate? mustn't they lucubrate?	mustn't I be lucubrating? mustn't you be lucubrating? mustn't he be lucubrating? mustn't we be lucubrating? mustn't you be lucubrating? mustn't they be lucubrating?
Perfect	V-ing perfect
mustn't I have lucubrated? mustn't you have lucubrated? mustn't he have lucubrated? mustn't we have lucubrated? mustn't you have lucubrated? mustn't they have lucubrated?	mustn't I have been lucubrating? mustn't you have been lucubrating? mustn't he have been lucubrating? mustn't we have been lucubrating? mustn't you have been lucubrating? mustn't they have been lucubrating?