Present participle; Past participle - siphoning - siphoned Present - siphon - siphon - siphons - siphon - siphon - siphon Past - siphoned - siphoned - siphoned - siphoned - siphoned - siphoned Future - will siphon - will siphon - will siphon - will siphon - will siphon - will siphon Present conditional - would siphon - would siphon - would siphon - would siphon - would siphon - would siphon Present Perfect - have siphoned - have siphoned - has siphoned - have siphoned - have siphoned - have siphoned Past Perfect - had siphoned - had siphoned - had siphoned - had siphoned - had siphoned - had siphoned Future Perfect - will have siphoned - will have siphoned - will have siphoned - will have siphoned - will have siphoned - will have siphoned Past conditional - would have siphoned - would have siphoned - would have siphoned - would have siphoned - would have siphoned - would have siphoned Imperative - - - siphon - - - - - - - -