Present participle; Past participle - duplicating - duplicated Present - duplicate - duplicate - duplicates - duplicate - duplicate - duplicate Past - duplicated - duplicated - duplicated - duplicated - duplicated - duplicated Future - will duplicate - will duplicate - will duplicate - will duplicate - will duplicate - will duplicate Present conditional - would duplicate - would duplicate - would duplicate - would duplicate - would duplicate - would duplicate Present Perfect - have duplicated - have duplicated - has duplicated - have duplicated - have duplicated - have duplicated Past Perfect - had duplicated - had duplicated - had duplicated - had duplicated - had duplicated - had duplicated Future Perfect - will have duplicated - will have duplicated - will have duplicated - will have duplicated - will have duplicated - will have duplicated Past conditional - would have duplicated - would have duplicated - would have duplicated - would have duplicated - would have duplicated - would have duplicated Imperative - - - duplicate - - - - - - - -