perhaps、maybe、possibly、probably的区别
perhaps
表示不确定的可能，较正式，常用于书面语。
maybe
口语中最常用的表示可能性的词，语气轻松、模糊。
possibly
表示‘有可能’，强调一种存在的可能性，通常可能性较低。
probably
表示‘很可能’，概率更高，常用于预测。
约朋友出门
上课迟到
| Word | 正式程度 | 可能性高低（主观） | 常见使用场合 |
|---|
| perhaps | 正式 | 中等 | 书面语、正式语境 |
| maybe | 非正式 | 中等 | 口语对话 |
| possibly | 较正式 | 偏低 | 说明一种潜在可能 |
| probably | 通用 | 偏高 | 做出合理推测 |
❌ He maybe is late.
✅ He may be late. / Maybe he is late.（maybe 不直接跟动词原形）
❌ Possibly she will come tomorrow, it's sure.
✅ Possibly she will come tomorrow, but it's not certain.（possibly 表示不确定，不应和“sure”连用）
❌ He probably not come today.
✅ He probably won't come today.（助动词+not 放在一起）
选择最合适的词：___ it will snow tonight, so wear a coat.
A. Maybe
B. Probably
C. Possibly
选择正确句子：
A. He maybe is free later.
B. Maybe he is free later.
C. He is maybe free later.
填空：___ we can try calling her again.
A. Perhaps
B. Probably
C. Sure
Extended Words
- likely（很可能）
- unlikely（不太可能）
- doubtful（令人怀疑的）
Tip 口诀：maybe口语随便说，perhaps正式见书多，possibly可能性较小，probably八九不离十。