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过去完成时 begin




翻译: 开始, 创建, 始于, 开场, 首先

过去完成时

I had begun



过去完成时 (Past perfect)

I
had begun 
you
had begun 
he/she/it
had begun 
we
had begun 
you
had begun 
they
had begun 


不定式

begin









不规则动词