Present participle; Past participle - trifling - trifled Present - trifle - trifle - trifles - trifle - trifle - trifle Past - trifled - trifled - trifled - trifled - trifled - trifled Future - will trifle - will trifle - will trifle - will trifle - will trifle - will trifle Present conditional - would trifle - would trifle - would trifle - would trifle - would trifle - would trifle Present Perfect - have trifled - have trifled - has trifled - have trifled - have trifled - have trifled Past Perfect - had trifled - had trifled - had trifled - had trifled - had trifled - had trifled Future Perfect - will have trifled - will have trifled - will have trifled - will have trifled - will have trifled - will have trifled Past conditional - would have trifled - would have trifled - would have trifled - would have trifled - would have trifled - would have trifled Imperative - - - trifle - - - - - - - -