Present participle; Past participle - tithing - tithed Present - tithe - tithe - tithes - tithe - tithe - tithe Past - tithed - tithed - tithed - tithed - tithed - tithed Future - will tithe - will tithe - will tithe - will tithe - will tithe - will tithe Present conditional - would tithe - would tithe - would tithe - would tithe - would tithe - would tithe Present Perfect - have tithed - have tithed - has tithed - have tithed - have tithed - have tithed Past Perfect - had tithed - had tithed - had tithed - had tithed - had tithed - had tithed Future Perfect - will have tithed - will have tithed - will have tithed - will have tithed - will have tithed - will have tithed Past conditional - would have tithed - would have tithed - would have tithed - would have tithed - would have tithed - would have tithed Imperative - - - tithe - - - - - - - -