标签：become的过去式过去分词式形式是什么

become的过去式是became；过去分词式是become。除此之外，become的过去式是became，现在分词是becomeing。 Become用法： 1、become用作系动词时,意思是“成为,变得”,表示情况的开始、发展和结束的...