Present participle; Past participle - clamping - clamped Present - clamp - clamp - clamps - clamp - clamp - clamp Past - clamped - clamped - clamped - clamped - clamped - clamped Future - will clamp - will clamp - will clamp - will clamp - will clamp - will clamp Present conditional - would clamp - would clamp - would clamp - would clamp - would clamp - would clamp Present Perfect - have clamped - have clamped - has clamped - have clamped - have clamped - have clamped Past Perfect - had clamped - had clamped - had clamped - had clamped - had clamped - had clamped Future Perfect - will have clamped - will have clamped - will have clamped - will have clamped - will have clamped - will have clamped Past conditional - would have clamped - would have clamped - would have clamped - would have clamped - would have clamped - would have clamped Imperative - - - clamp - - - - - - - -