come into being 有无完成时?Break up 前面能否加be动词?

come into being 有无完成时?Break up 前面能否加be动词? 英语翻译用上 come into being come into being是不是及物动词 come into being 和come into effect 有什么区别 come into being 的意思是什么? /come into being造个句子, come into being和exist的区别 come into being造个句子, 用come into being造句用come into being、recommend造句 ` 还要有中文意思. come into being和shape的区别是什么啊?come into being come into being 与appear有何区别? whats your hobby?how does it come into being?写不来：（ The custom come into being long ago.翻译,秒采 The custom come into being 300 years ago ,come用什么时态 come into come into come into , 用英语翻译“那种想法是怎样产生的?”要用短语come into being 谢了