occurred is occur's Past Tense

occur

US [əˈkɜr]
UK [əˈkɜː(r)]
  • v.出现;想起;(事件等)发生;存在
  • Web发生的;已发生;发生了如下错误
Past Tense:occurred  Simple Present:occurs  Present Participle:occurring  
v.
1.
(事件等)发生
2.
出来,出现;存在;被发现
3.
被想到,想起

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard