Present participle; Past participle - propelling - propelled Present - propel - propel - propels - propel - propel - propel Past - propelled - propelled - propelled - propelled - propelled - propelled Future - will propel - will propel - will propel - will propel - will propel - will propel Present conditional - would propel - would propel - would propel - would propel - would propel - would propel Present Perfect - have propelled - have propelled - has propelled - have propelled - have propelled - have propelled Past Perfect - had propelled - had propelled - had propelled - had propelled - had propelled - had propelled Future Perfect - will have propelled - will have propelled - will have propelled - will have propelled - will have propelled - will have propelled Past conditional - would have propelled - would have propelled - would have propelled - would have propelled - would have propelled - would have propelled Imperative - - - propel - - - - - - - -