Present participle; Past participle - humidifying - humidified Present - humidify - humidify - humidifies - humidify - humidify - humidify Past - humidified - humidified - humidified - humidified - humidified - humidified Future - will humidify - will humidify - will humidify - will humidify - will humidify - will humidify Present conditional - would humidify - would humidify - would humidify - would humidify - would humidify - would humidify Present Perfect - have humidified - have humidified - has humidified - have humidified - have humidified - have humidified Past Perfect - had humidified - had humidified - had humidified - had humidified - had humidified - had humidified Future Perfect - will have humidified - will have humidified - will have humidified - will have humidified - will have humidified - will have humidified Past conditional - would have humidified - would have humidified - would have humidified - would have humidified - would have humidified - would have humidified Imperative - - - humidify - - - - - - - -