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、发展和结束的变化...

become的过去式为：became；过去分词为：become；现在分词是becoming。第三人称单数是becomes。become的意思为：变成；成为；变得。常见短语1、become abstracted变得心不在焉2、become a...