Present participle; Past participle - operating - operated Present - operate - operate - operates - operate - operate - operate Past - operated - operated - operated - operated - operated - operated Future - will operate - will operate - will operate - will operate - will operate - will operate Present conditional - would operate - would operate - would operate - would operate - would operate - would operate Present Perfect - have operated - have operated - has operated - have operated - have operated - have operated Past Perfect - had operated - had operated - had operated - had operated - had operated - had operated Future Perfect - will have operated - will have operated - will have operated - will have operated - will have operated - will have operated Past conditional - would have operated - would have operated - would have operated - would have operated - would have operated - would have operated Imperative - - - operate - - - - - - - -