Present participle; Past participle - syphoning - syphoned Present - syphon - syphon - syphons - syphon - syphon - syphon Past - syphoned - syphoned - syphoned - syphoned - syphoned - syphoned Future - will syphon - will syphon - will syphon - will syphon - will syphon - will syphon Present conditional - would syphon - would syphon - would syphon - would syphon - would syphon - would syphon Present Perfect - have syphoned - have syphoned - has syphoned - have syphoned - have syphoned - have syphoned Past Perfect - had syphoned - had syphoned - had syphoned - had syphoned - had syphoned - had syphoned Future Perfect - will have syphoned - will have syphoned - will have syphoned - will have syphoned - will have syphoned - will have syphoned Past conditional - would have syphoned - would have syphoned - would have syphoned - would have syphoned - would have syphoned - would have syphoned Imperative - - - syphon - - - - - - - -