Present participle; Past participle - birching - birched Present - birch - birch - birches - birch - birch - birch Past - birched - birched - birched - birched - birched - birched Future - will birch - will birch - will birch - will birch - will birch - will birch Present conditional - would birch - would birch - would birch - would birch - would birch - would birch Present Perfect - have birched - have birched - has birched - have birched - have birched - have birched Past Perfect - had birched - had birched - had birched - had birched - had birched - had birched Future Perfect - will have birched - will have birched - will have birched - will have birched - will have birched - will have birched Past conditional - would have birched - would have birched - would have birched - would have birched - would have birched - would have birched Imperative - - - birch - - - - - - - -