1. Meaning and Usage
The character "已" (yǐ) generally means "already" or "by now," indicating that an action or a state has been completed or reached a certain point. It functions similarly to "已经" (yǐjīng) but is often considered more formal, concise, and frequently used in written contexts like news reports, official documents, or formal announcements. It emphasizes the completion or the resulting state.
2. Formulas and Examples
Case 1: Indicating a completed action or state reached
This is the most common usage, where "已" precedes a verb or a verb phrase to show an action has finished.
$$ S + 已 + V/VP (+ O) $$
火车已出发。 Huǒchē yǐ chūfā. The train has already departed.
他已完成任务。 Tā yǐ wánchéng rènwu. He has already completed the task.
Case 2: Describing a state or degree that has been reached
"已" can also precede an adjective or adjective phrase to indicate that a certain quality or state has been attained.
$$ S + 已 + Adj/AdjP $$
问题已解决。 Wèntí yǐ jiějué. The problem has already been solved. (Here 解决 acts as an adjective describing the state of the problem)
温度已达最高点。 Wēndù yǐ dá zuìgāo diǎn. The temperature has already reached its highest point.
Case 3: Indicating "has (already) served as" or "is already considered as"
Used with "作为" (zuòwéi) or implied, "已" can describe a role or status that has been established.
$$ S + 已 (作)为 + N/NP $$
他已作为公司代表出席。 Tā yǐ zuòwéi gōngsī dàibiǎo chūxí. He has already attended as the company representative.
这已是常态。 Zhè yǐ shì chángtài. This has already become the norm. (Here '是' acts as the verb)
Case 4: Emphasizing "it is already..." (time or situation)
When used with "是" (shì), "已是" often conveys that a certain time has arrived, or a situation has developed to a certain point, sometimes implying consequences or urgency.
$$ S + 已是 + N/AdjP $$
现在已是深夜。 Xiànzài yǐ shì shēnyè. It is already deep night now.
事情已是如此。 Shìqing yǐ shì rúcǐ. Things are already like this.
3. Essential HSK Tips & Common Mistakes
Formality and Context: The most crucial tip for "已" is to understand its formal nature. While it means "already," similar to "已经" (yǐjīng), "已" is more concise and frequently encountered in written language, formal speeches, reports, and news. In casual spoken Chinese, "已经" is far more common.
合同已签署。 (Formal/Written) Hétong yǐ qiānshǔ. The contract has been signed.
我们已经把合同签了。 (Casual/Spoken) Wǒmen yǐjīng bǎ hétong qiān le. We have already signed the contract.
Placement: "已" typically precedes the verb or adjective it modifies. Unlike "已经," which sometimes can be placed at the beginning of a sentence (e.g., "已经很晚了"), "已" is almost always placed directly before the predicate.
Emphasis on Result/State: "已" often emphasizes the result or current state of an action rather than merely the completion of the action itself. For example, "问题已解决" (The problem has already been solved and is no longer an issue) carries a stronger sense of a settled state than "问题已经解决了."
Common Mistake: Overuse in Casual Speech: English speakers, noticing "已" means "already," might try to use it in every context where "already" appears in English. This leads to unnatural-sounding Chinese in casual conversation. Remember to opt for "已经" in most spoken situations.
Common Mistake: Confusing with "了" (le): While "了" also indicates completion, "已" explicitly states "already" or "by now." "了" can simply mark an action's completion without emphasizing that it's "already" done or a state has been reached as of now.
他走了。 (Just indicates he left) Tā zǒu le. He left.
他已走。 (Indicates he already left, more formal) Tā yǐ zǒu. He has already left.