Present participle; Past participle - serrating - serrated Present - serrate - serrate - serrates - serrate - serrate - serrate Past - serrated - serrated - serrated - serrated - serrated - serrated Future - will serrate - will serrate - will serrate - will serrate - will serrate - will serrate Present conditional - would serrate - would serrate - would serrate - would serrate - would serrate - would serrate Present Perfect - have serrated - have serrated - has serrated - have serrated - have serrated - have serrated Past Perfect - had serrated - had serrated - had serrated - had serrated - had serrated - had serrated Future Perfect - will have serrated - will have serrated - will have serrated - will have serrated - will have serrated - will have serrated Past conditional - would have serrated - would have serrated - would have serrated - would have serrated - would have serrated - would have serrated Imperative - - - serrate - - - - - - - -