Present participle; Past participle - sidelining - sidelined Present - sideline - sideline - sidelines - sideline - sideline - sideline Past - sidelined - sidelined - sidelined - sidelined - sidelined - sidelined Future - will sideline - will sideline - will sideline - will sideline - will sideline - will sideline Present conditional - would sideline - would sideline - would sideline - would sideline - would sideline - would sideline Present Perfect - have sidelined - have sidelined - has sidelined - have sidelined - have sidelined - have sidelined Past Perfect - had sidelined - had sidelined - had sidelined - had sidelined - had sidelined - had sidelined Future Perfect - will have sidelined - will have sidelined - will have sidelined - will have sidelined - will have sidelined - will have sidelined Past conditional - would have sidelined - would have sidelined - would have sidelined - would have sidelined - would have sidelined - would have sidelined Imperative - - - sideline - - - - - - - -