must lubricant
Verbe régulier : lubricant - lubricanted- lubricanted

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must lubricant
you must lubricant
he must lubricant
we must lubricant
you must lubricant
they must lubricant 	I must be lubricanting
you must be lubricanting
he must be lubricanting
we must be lubricanting
you must be lubricanting
they must be lubricanting	I must have lubricanted
you must have lubricanted
he must have lubricanted
we must have lubricanted
you must have lubricanted
they must have lubricanted	I must have been lubricanting
you must have been lubricanting
he must have been lubricanting
we must have been lubricanting
you must have been lubricanting
they must have been lubricanting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not lubricant
you must not lubricant
he must not lubricant
we must not lubricant
you must not lubricant
they must not lubricant 	I must not be lubricanting
you must not be lubricanting
he must not be lubricanting
we must not be lubricanting
you must not be lubricanting
they must not be lubricanting	I must not have lubricanted
you must not have lubricanted
he must not have lubricanted
we must not have lubricanted
you must not have lubricanted
they must not have lubricanted	I must not have been lubricanting
you must not have been lubricanting
he must not have been lubricanting
we must not have been lubricanting
you must not have been lubricanting
they must not have been lubricanting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I lubricant?
must you lubricant?
must he lubricant?
must we lubricant?
must you lubricant?
must they lubricant? 	must I be lubricanting?
must you be lubricanting?
must he be lubricanting?
must we be lubricanting?
must you be lubricanting?
must they be lubricanting? 	must I have lubricanted?
must you have lubricanted?
must he have lubricanted?
must we have lubricanted?
must you have lubricanted?
must they have lubricanted? 	must I have been lubricanting?
must you have been lubricanting?
must he have been lubricanting?
must we have been lubricanting?
must you have been lubricanting?
must they have been lubricanting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not lubricant?
must you not lubricant?
must he not lubricant?
must we not lubricant?
must you not lubricant?
must they not lubricant? 	must I not be lubricanting?
must you not be lubricanting?
must he not be lubricanting?
must we not be lubricanting?
must you not be lubricanting?
must they not be lubricanting? 	must I not have lubricanted?
must you not have lubricanted?
must he not have lubricanted?
must we not have lubricanted?
must you not have lubricanted?
must they not have lubricanted? 	must I not have been lubricanting?
must you not have been lubricanting?
must he not have been lubricanting?
must we not have been lubricanting?
must you not have been lubricanting?
must they not have been lubricanting?