Present participle; Past participle - preconditioning - preconditioned Present - precondition - precondition - preconditions - precondition - precondition - precondition Past - preconditioned - preconditioned - preconditioned - preconditioned - preconditioned - preconditioned Future - will precondition - will precondition - will precondition - will precondition - will precondition - will precondition Present conditional - would precondition - would precondition - would precondition - would precondition - would precondition - would precondition Present Perfect - have preconditioned - have preconditioned - has preconditioned - have preconditioned - have preconditioned - have preconditioned Past Perfect - had preconditioned - had preconditioned - had preconditioned - had preconditioned - had preconditioned - had preconditioned Future Perfect - will have preconditioned - will have preconditioned - will have preconditioned - will have preconditioned - will have preconditioned - will have preconditioned Past conditional - would have preconditioned - would have preconditioned - would have preconditioned - would have preconditioned - would have preconditioned - would have preconditioned Imperative - - - precondition - - - - - - - -