Present participle; Past participle - tarnishing - tarnished Present - tarnish - tarnish - tarnishes - tarnish - tarnish - tarnish Past - tarnished - tarnished - tarnished - tarnished - tarnished - tarnished Future - will tarnish - will tarnish - will tarnish - will tarnish - will tarnish - will tarnish Present conditional - would tarnish - would tarnish - would tarnish - would tarnish - would tarnish - would tarnish Present Perfect - have tarnished - have tarnished - has tarnished - have tarnished - have tarnished - have tarnished Past Perfect - had tarnished - had tarnished - had tarnished - had tarnished - had tarnished - had tarnished Future Perfect - will have tarnished - will have tarnished - will have tarnished - will have tarnished - will have tarnished - will have tarnished Past conditional - would have tarnished - would have tarnished - would have tarnished - would have tarnished - would have tarnished - would have tarnished Imperative - - - tarnish - - - - - - - -