Present participle; Past participle - fountaining - fountained Present - fountain - fountain - fountains - fountain - fountain - fountain Past - fountained - fountained - fountained - fountained - fountained - fountained Future - will fountain - will fountain - will fountain - will fountain - will fountain - will fountain Present conditional - would fountain - would fountain - would fountain - would fountain - would fountain - would fountain Present Perfect - have fountained - have fountained - has fountained - have fountained - have fountained - have fountained Past Perfect - had fountained - had fountained - had fountained - had fountained - had fountained - had fountained Future Perfect - will have fountained - will have fountained - will have fountained - will have fountained - will have fountained - will have fountained Past conditional - would have fountained - would have fountained - would have fountained - would have fountained - would have fountained - would have fountained Imperative - - - fountain - - - - - - - -