happened on is happen on's Past Tense

happen on

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  • na.偶然看到
Simple Present:happens on  Present Participle:happening on  Past Tense:happened on  

Sample Sentence

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