Present participle; Past participle - bucking - bucked Present - buck - buck - bucks - buck - buck - buck Past - bucked - bucked - bucked - bucked - bucked - bucked Future - will buck - will buck - will buck - will buck - will buck - will buck Present conditional - would buck - would buck - would buck - would buck - would buck - would buck Present Perfect - have bucked - have bucked - has bucked - have bucked - have bucked - have bucked Past Perfect - had bucked - had bucked - had bucked - had bucked - had bucked - had bucked Future Perfect - will have bucked - will have bucked - will have bucked - will have bucked - will have bucked - will have bucked Past conditional - would have bucked - would have bucked - would have bucked - would have bucked - would have bucked - would have bucked Imperative - - - buck - - - - - - - -