The phrase "came be" is often used to describe the beginning or creation of something. However, there are several antonyms that can be used to indicate the ending or destruction of something. These include "cease to be," "come to an end," "disappear," "vanish," "die out," "expire," "terminate," "conclude," "finish," and "disintegrate." These words are often used in literary works to create a sense of finality or closure. It is also important to note that the opposite of "came be" is not necessarily "never was," as something may exist for a time before ending.