Present participle; Past participle - marring - marred Present - mar - mar - mars - mar - mar - mar Past - marred - marred - marred - marred - marred - marred Future - will mar - will mar - will mar - will mar - will mar - will mar Present conditional - would mar - would mar - would mar - would mar - would mar - would mar Present Perfect - have marred - have marred - has marred - have marred - have marred - have marred Past Perfect - had marred - had marred - had marred - had marred - had marred - had marred Future Perfect - will have marred - will have marred - will have marred - will have marred - will have marred - will have marred Past conditional - would have marred - would have marred - would have marred - would have marred - would have marred - would have marred Imperative - - - mar - - - - - - - -