Present participle; Past participle - quavering - quavered Present - quaver - quaver - quavers - quaver - quaver - quaver Past - quavered - quavered - quavered - quavered - quavered - quavered Future - will quaver - will quaver - will quaver - will quaver - will quaver - will quaver Present conditional - would quaver - would quaver - would quaver - would quaver - would quaver - would quaver Present Perfect - have quavered - have quavered - has quavered - have quavered - have quavered - have quavered Past Perfect - had quavered - had quavered - had quavered - had quavered - had quavered - had quavered Future Perfect - will have quavered - will have quavered - will have quavered - will have quavered - will have quavered - will have quavered Past conditional - would have quavered - would have quavered - would have quavered - would have quavered - would have quavered - would have quavered Imperative - - - quaver - - - - - - - -