Present participle; Past participle - refuel(l)ing - refuel(l)ed Present - refuel - refuel - refuels - refuel - refuel - refuel Past - refuel(l)ed - refuel(l)ed - refuel(l)ed - refuel(l)ed - refuel(l)ed - refuel(l)ed Future - will refuel - will refuel - will refuel - will refuel - will refuel - will refuel Present conditional - would refuel - would refuel - would refuel - would refuel - would refuel - would refuel Present Perfect - have refuel(l)ed - have refuel(l)ed - has refuel(l)ed - have refuel(l)ed - have refuel(l)ed - have refuel(l)ed Past Perfect - had refuel(l)ed - had refuel(l)ed - had refuel(l)ed - had refuel(l)ed - had refuel(l)ed - had refuel(l)ed Future Perfect - will have refuel(l)ed - will have refuel(l)ed - will have refuel(l)ed - will have refuel(l)ed - will have refuel(l)ed - will have refuel(l)ed Past conditional - would have refuel(l)ed - would have refuel(l)ed - would have refuel(l)ed - would have refuel(l)ed - would have refuel(l)ed - would have refuel(l)ed Imperative - - - refuel - - - - - - - -