Present participle; Past participle - siring - sired Present - sire - sire - sires - sire - sire - sire Past - sired - sired - sired - sired - sired - sired Future - will sire - will sire - will sire - will sire - will sire - will sire Present conditional - would sire - would sire - would sire - would sire - would sire - would sire Present Perfect - have sired - have sired - has sired - have sired - have sired - have sired Past Perfect - had sired - had sired - had sired - had sired - had sired - had sired Future Perfect - will have sired - will have sired - will have sired - will have sired - will have sired - will have sired Past conditional - would have sired - would have sired - would have sired - would have sired - would have sired - would have sired Imperative - - - sire - - - - - - - -