Present participle; Past participle - buttonholing - buttonholed Present - buttonhole - buttonhole - buttonholes - buttonhole - buttonhole - buttonhole Past - buttonholed - buttonholed - buttonholed - buttonholed - buttonholed - buttonholed Future - will buttonhole - will buttonhole - will buttonhole - will buttonhole - will buttonhole - will buttonhole Present conditional - would buttonhole - would buttonhole - would buttonhole - would buttonhole - would buttonhole - would buttonhole Present Perfect - have buttonholed - have buttonholed - has buttonholed - have buttonholed - have buttonholed - have buttonholed Past Perfect - had buttonholed - had buttonholed - had buttonholed - had buttonholed - had buttonholed - had buttonholed Future Perfect - will have buttonholed - will have buttonholed - will have buttonholed - will have buttonholed - will have buttonholed - will have buttonholed Past conditional - would have buttonholed - would have buttonholed - would have buttonholed - would have buttonholed - would have buttonholed - would have buttonholed Imperative - - - buttonhole - - - - - - - -