must lustrate
Verbe régulier : lustrate - lustrated- lustrated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must lustrate
you must lustrate
he must lustrate
we must lustrate
you must lustrate
they must lustrate 	I must be lustrating
you must be lustrating
he must be lustrating
we must be lustrating
you must be lustrating
they must be lustrating	I must have lustrated
you must have lustrated
he must have lustrated
we must have lustrated
you must have lustrated
they must have lustrated	I must have been lustrating
you must have been lustrating
he must have been lustrating
we must have been lustrating
you must have been lustrating
they must have been lustrating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not lustrate
you must not lustrate
he must not lustrate
we must not lustrate
you must not lustrate
they must not lustrate 	I must not be lustrating
you must not be lustrating
he must not be lustrating
we must not be lustrating
you must not be lustrating
they must not be lustrating	I must not have lustrated
you must not have lustrated
he must not have lustrated
we must not have lustrated
you must not have lustrated
they must not have lustrated	I must not have been lustrating
you must not have been lustrating
he must not have been lustrating
we must not have been lustrating
you must not have been lustrating
they must not have been lustrating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I lustrate?
must you lustrate?
must he lustrate?
must we lustrate?
must you lustrate?
must they lustrate? 	must I be lustrating?
must you be lustrating?
must he be lustrating?
must we be lustrating?
must you be lustrating?
must they be lustrating? 	must I have lustrated?
must you have lustrated?
must he have lustrated?
must we have lustrated?
must you have lustrated?
must they have lustrated? 	must I have been lustrating?
must you have been lustrating?
must he have been lustrating?
must we have been lustrating?
must you have been lustrating?
must they have been lustrating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not lustrate?
must you not lustrate?
must he not lustrate?
must we not lustrate?
must you not lustrate?
must they not lustrate? 	must I not be lustrating?
must you not be lustrating?
must he not be lustrating?
must we not be lustrating?
must you not be lustrating?
must they not be lustrating? 	must I not have lustrated?
must you not have lustrated?
must he not have lustrated?
must we not have lustrated?
must you not have lustrated?
must they not have lustrated? 	must I not have been lustrating?
must you not have been lustrating?
must he not have been lustrating?
must we not have been lustrating?
must you not have been lustrating?
must they not have been lustrating?