Present participle; Past participle - duplexing - duplexed Present - duplex - duplex - duplexes - duplex - duplex - duplex Past - duplexed - duplexed - duplexed - duplexed - duplexed - duplexed Future - will duplex - will duplex - will duplex - will duplex - will duplex - will duplex Present conditional - would duplex - would duplex - would duplex - would duplex - would duplex - would duplex Present Perfect - have duplexed - have duplexed - has duplexed - have duplexed - have duplexed - have duplexed Past Perfect - had duplexed - had duplexed - had duplexed - had duplexed - had duplexed - had duplexed Future Perfect - will have duplexed - will have duplexed - will have duplexed - will have duplexed - will have duplexed - will have duplexed Past conditional - would have duplexed - would have duplexed - would have duplexed - would have duplexed - would have duplexed - would have duplexed Imperative - - - duplex - - - - - - - -