Meaning and Usage
The verb 发誓 (fā shì) means "to vow" or "to swear" and is used when someone makes a solemn promise or pledge, often with strong emotional commitment. It is common in both formal and informal contexts when emphasizing determination or sincerity.
Common Collocations
- 发誓要 + verb phrase: to vow to do something
- 发誓不 + verb phrase: to swear not to do something
- 发誓保护/完成/遵守: vow to protect/complete/obey
Usage Notes
发誓 is stronger than simply saying "promise" (答应 dāying). It implies a serious, often heartfelt commitment. It is often used in personal contexts, such as promises to oneself or others, but can also appear in formal declarations.
Avoiding Confusion
Do not confuse 发誓 with 保证 (bǎozhèng), which means "to guarantee" and is more formal and less emotional. 发誓 carries a tone of solemnity and personal resolve.
Summary
Use 发誓 when you want to express a strong, solemn vow or pledge, especially in emotional or serious situations. It often appears with verbs indicating actions the speaker commits to or refuses to do.