must lucubrate
Verbe régulier : lucubrate - lucubrated- lucubrated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
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	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	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
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	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	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
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? 	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? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
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? 	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?