Present participle; Past participle - quelling - quelled Present - quell - quell - quells - quell - quell - quell Past - quelled - quelled - quelled - quelled - quelled - quelled Future - will quell - will quell - will quell - will quell - will quell - will quell Present conditional - would quell - would quell - would quell - would quell - would quell - would quell Present Perfect - have quelled - have quelled - has quelled - have quelled - have quelled - have quelled Past Perfect - had quelled - had quelled - had quelled - had quelled - had quelled - had quelled Future Perfect - will have quelled - will have quelled - will have quelled - will have quelled - will have quelled - will have quelled Past conditional - would have quelled - would have quelled - would have quelled - would have quelled - would have quelled - would have quelled Imperative - - - quell - - - - - - - -