Present participle; Past participle - blundering - blundered Present - blunder - blunder - blunders - blunder - blunder - blunder Past - blundered - blundered - blundered - blundered - blundered - blundered Future - will blunder - will blunder - will blunder - will blunder - will blunder - will blunder Present conditional - would blunder - would blunder - would blunder - would blunder - would blunder - would blunder Present Perfect - have blundered - have blundered - has blundered - have blundered - have blundered - have blundered Past Perfect - had blundered - had blundered - had blundered - had blundered - had blundered - had blundered Future Perfect - will have blundered - will have blundered - will have blundered - will have blundered - will have blundered - will have blundered Past conditional - would have blundered - would have blundered - would have blundered - would have blundered - would have blundered - would have blundered Imperative - - - blunder - - - - - - - -