Present participle; Past participle - prefacing - prefaced Present - preface - preface - prefaces - preface - preface - preface Past - prefaced - prefaced - prefaced - prefaced - prefaced - prefaced Future - will preface - will preface - will preface - will preface - will preface - will preface Present conditional - would preface - would preface - would preface - would preface - would preface - would preface Present Perfect - have prefaced - have prefaced - has prefaced - have prefaced - have prefaced - have prefaced Past Perfect - had prefaced - had prefaced - had prefaced - had prefaced - had prefaced - had prefaced Future Perfect - will have prefaced - will have prefaced - will have prefaced - will have prefaced - will have prefaced - will have prefaced Past conditional - would have prefaced - would have prefaced - would have prefaced - would have prefaced - would have prefaced - would have prefaced Imperative - - - preface - - - - - - - -