Present participle; Past participle - whumping - whumped Present - whump - whump - whumps - whump - whump - whump Past - whumped - whumped - whumped - whumped - whumped - whumped Future - will whump - will whump - will whump - will whump - will whump - will whump Present conditional - would whump - would whump - would whump - would whump - would whump - would whump Present Perfect - have whumped - have whumped - has whumped - have whumped - have whumped - have whumped Past Perfect - had whumped - had whumped - had whumped - had whumped - had whumped - had whumped Future Perfect - will have whumped - will have whumped - will have whumped - will have whumped - will have whumped - will have whumped Past conditional - would have whumped - would have whumped - would have whumped - would have whumped - would have whumped - would have whumped Imperative - - - whump - - - - - - - -