Present participle; Past participle - clinching - clinched Present - clinch - clinch - clinches - clinch - clinch - clinch Past - clinched - clinched - clinched - clinched - clinched - clinched Future - will clinch - will clinch - will clinch - will clinch - will clinch - will clinch Present conditional - would clinch - would clinch - would clinch - would clinch - would clinch - would clinch Present Perfect - have clinched - have clinched - has clinched - have clinched - have clinched - have clinched Past Perfect - had clinched - had clinched - had clinched - had clinched - had clinched - had clinched Future Perfect - will have clinched - will have clinched - will have clinched - will have clinched - will have clinched - will have clinched Past conditional - would have clinched - would have clinched - would have clinched - would have clinched - would have clinched - would have clinched Imperative - - - clinch - - - - - - - -