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
she must lucubrate
we must lucubrate
you must lucubrate
they must lucubrate 	I must be lucubrating
you must be lucubrating
she must be lucubrating
we must be lucubrating
you must be lucubrating
they must be lucubrating	I must have lucubrated
you must have lucubrated
she 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
she 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 must not lucubrate
you must not lucubrate
she must not lucubrate
we must not lucubrate
you must not lucubrate
they must not lucubrate 	I must not be lucubrating
you must not be lucubrating
she must not be lucubrating
we must not be lucubrating
you must not be lucubrating
they must not be lucubrating	I must not have lucubrated
you must not have lucubrated
she must not have lucubrated
we must not have lucubrated
you must not have lucubrated
they must not have lucubrated	I must not have been lucubrating
you must not have been lucubrating
she must not have been lucubrating
we must not have been lucubrating
you must not have been lucubrating
they must not have been lucubrating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I lucubrate?
must you lucubrate?
must she lucubrate?
must we lucubrate?
must you lucubrate?
must they lucubrate? 	must I be lucubrating?
must you be lucubrating?
must she be lucubrating?
must we be lucubrating?
must you be lucubrating?
must they be lucubrating? 	must I have lucubrated?
must you have lucubrated?
must she 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 she 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 	
must I not lucubrate?
must you not lucubrate?
must she not lucubrate?
must we not lucubrate?
must you not lucubrate?
must they not lucubrate? 	must I not be lucubrating?
must you not be lucubrating?
must she not be lucubrating?
must we not be lucubrating?
must you not be lucubrating?
must they not be lucubrating? 	must I not have lucubrated?
must you not have lucubrated?
must she not have lucubrated?
must we not have lucubrated?
must you not have lucubrated?
must they not have lucubrated? 	must I not have been lucubrating?
must you not have been lucubrating?
must she not have been lucubrating?
must we not have been lucubrating?
must you not have been lucubrating?
must they not have been lucubrating?