must precondition
Verbe régulier : precondition - preconditioned- preconditioned
Traduction française : conditionner 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must precondition
you must precondition
she must precondition
we must precondition
you must precondition
they must precondition 	I must be preconditioning
you must be preconditioning
she must be preconditioning
we must be preconditioning
you must be preconditioning
they must be preconditioning	I must have preconditioned
you must have preconditioned
she must have preconditioned
we must have preconditioned
you must have preconditioned
they must have preconditioned	I must have been preconditioning
you must have been preconditioning
she must have been preconditioning
we must have been preconditioning
you must have been preconditioning
they must have been preconditioning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not precondition
you must not precondition
she must not precondition
we must not precondition
you must not precondition
they must not precondition 	I must not be preconditioning
you must not be preconditioning
she must not be preconditioning
we must not be preconditioning
you must not be preconditioning
they must not be preconditioning	I must not have preconditioned
you must not have preconditioned
she must not have preconditioned
we must not have preconditioned
you must not have preconditioned
they must not have preconditioned	I must not have been preconditioning
you must not have been preconditioning
she must not have been preconditioning
we must not have been preconditioning
you must not have been preconditioning
they must not have been preconditioning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I precondition?
must you precondition?
must she precondition?
must we precondition?
must you precondition?
must they precondition? 	must I be preconditioning?
must you be preconditioning?
must she be preconditioning?
must we be preconditioning?
must you be preconditioning?
must they be preconditioning? 	must I have preconditioned?
must you have preconditioned?
must she have preconditioned?
must we have preconditioned?
must you have preconditioned?
must they have preconditioned? 	must I have been preconditioning?
must you have been preconditioning?
must she have been preconditioning?
must we have been preconditioning?
must you have been preconditioning?
must they have been preconditioning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not precondition?
must you not precondition?
must she not precondition?
must we not precondition?
must you not precondition?
must they not precondition? 	must I not be preconditioning?
must you not be preconditioning?
must she not be preconditioning?
must we not be preconditioning?
must you not be preconditioning?
must they not be preconditioning? 	must I not have preconditioned?
must you not have preconditioned?
must she not have preconditioned?
must we not have preconditioned?
must you not have preconditioned?
must they not have preconditioned? 	must I not have been preconditioning?
must you not have been preconditioning?
must she not have been preconditioning?
must we not have been preconditioning?
must you not have been preconditioning?
must they not have been preconditioning?