Present participle; Past participle - smoldering - smoldered Present - smolder - smolder - smolders - smolder - smolder - smolder Past - smoldered - smoldered - smoldered - smoldered - smoldered - smoldered Future - will smolder - will smolder - will smolder - will smolder - will smolder - will smolder Present conditional - would smolder - would smolder - would smolder - would smolder - would smolder - would smolder Present Perfect - have smoldered - have smoldered - has smoldered - have smoldered - have smoldered - have smoldered Past Perfect - had smoldered - had smoldered - had smoldered - had smoldered - had smoldered - had smoldered Future Perfect - will have smoldered - will have smoldered - will have smoldered - will have smoldered - will have smoldered - will have smoldered Past conditional - would have smoldered - would have smoldered - would have smoldered - would have smoldered - would have smoldered - would have smoldered Imperative - - - smolder - - - - - - - -