Expressing the only two possibilities

To describe a situation as being one of only two possibilities, you can use this structure:

不是 + A, 就是 + B

This is like saying "if it's not A, then it's B" in English. A and B can be verbs, adjectives or nouns.

Some examples:

• 不是 成功，就是 失败。
• 不是 对的，就是 错误。
• 不是 优点，就是 缺点。