Present participle; Past participle - blackmailing - blackmailed Present - blackmail - blackmail - blackmails - blackmail - blackmail - blackmail Past - blackmailed - blackmailed - blackmailed - blackmailed - blackmailed - blackmailed Future - will blackmail - will blackmail - will blackmail - will blackmail - will blackmail - will blackmail Present conditional - would blackmail - would blackmail - would blackmail - would blackmail - would blackmail - would blackmail Present Perfect - have blackmailed - have blackmailed - has blackmailed - have blackmailed - have blackmailed - have blackmailed Past Perfect - had blackmailed - had blackmailed - had blackmailed - had blackmailed - had blackmailed - had blackmailed Future Perfect - will have blackmailed - will have blackmailed - will have blackmailed - will have blackmailed - will have blackmailed - will have blackmailed Past conditional - would have blackmailed - would have blackmailed - would have blackmailed - would have blackmailed - would have blackmailed - would have blackmailed Imperative - - - blackmail - - - - - - - -