campaigned is campaign's Past Tense

campaign

US [kæmˈpeɪn]
UK [kæm'peɪn]
  • n.竞选运动;游说;战役;【冶】开炉时间
  • v.从军;参加[从事](某一)运动
Plural Form:campaigns  Present Participle:campaigning  Past Tense:campaigned