Present participle; Past participle - trooping - trooped Present - troop - troop - troops - troop - troop - troop Past - trooped - trooped - trooped - trooped - trooped - trooped Future - will troop - will troop - will troop - will troop - will troop - will troop Present conditional - would troop - would troop - would troop - would troop - would troop - would troop Present Perfect - have trooped - have trooped - has trooped - have trooped - have trooped - have trooped Past Perfect - had trooped - had trooped - had trooped - had trooped - had trooped - had trooped Future Perfect - will have trooped - will have trooped - will have trooped - will have trooped - will have trooped - will have trooped Past conditional - would have trooped - would have trooped - would have trooped - would have trooped - would have trooped - would have trooped Imperative - - - troop - - - - - - - -