Present participle; Past participle - sheathing - sheathed Present - sheathe - sheathe - sheathes - sheathe - sheathe - sheathe Past - sheathed - sheathed - sheathed - sheathed - sheathed - sheathed Future - will sheathe - will sheathe - will sheathe - will sheathe - will sheathe - will sheathe Present conditional - would sheathe - would sheathe - would sheathe - would sheathe - would sheathe - would sheathe Present Perfect - have sheathed - have sheathed - has sheathed - have sheathed - have sheathed - have sheathed Past Perfect - had sheathed - had sheathed - had sheathed - had sheathed - had sheathed - had sheathed Future Perfect - will have sheathed - will have sheathed - will have sheathed - will have sheathed - will have sheathed - will have sheathed Past conditional - would have sheathed - would have sheathed - would have sheathed - would have sheathed - would have sheathed - would have sheathed Imperative - - - sheathe - - - - - - - -