Chưa for Not-Yet and Experiential Questions

Chưa says that an expected or relevant situation has not become true up to a reference point. That is why Bài chưa xong means “The work is not finished yet,” not simply “The work is not finished.” In a question, chưa turns that same open possibility into “yet?” or “already?”: Bạn ăn chưa? “Have you eaten yet?”

English divides these meanings among not yet, ever, the present perfect, and sometimes the simple past. Vietnamese uses chưa to keep the event boundary open. This page focuses on chưa; vẫn, which adds continuation or counterexpectation, has its own dedicated page.

The statement and question patterns on this page are neutral standard Vietnamese. Subject omission such as Ăn chưa? is especially frequent in (informal) conversation when the participants are obvious.

Chưa before a predicate: “not yet”

In a statement, chưa normally comes before the predicate:

subject + chưa + predicate

The sentence does not merely negate the event. It presents the event as unrealized so far, often with an expectation that it may happen later. Compare không ăn sáng “do not eat breakfast / am not eating breakfast” with chưa ăn sáng “have not eaten breakfast yet.”

Chưa after the predicate in a question

In a polar question, chưa commonly stands at the end of the predicate phrase:

subject + predicate + chưa?

This order asks whether the event has crossed the relevant boundary. The normal short answers mirror the two possible phases:

• Rồi. — “Yes / already.”
• Chưa. — “Not yet.”

The fuller pattern đã...chưa? makes realization explicit: Bạn đã đặt vé chưa? It is common, but đã is not required merely because English uses have. Bạn đặt vé chưa? is fully natural when the booking is already the shared topic.

Why event type changes the reading

With a bounded predicate such as đến “arrive,” xong “finished,” or gửi “send,” chưa naturally targets a clear endpoint. With an activity such as ăn, context supplies a relevant meal or occasion. With a state such as biết “know,” chưa biết means the state of knowing has not begun by the reference point.

The time phrase can move the reference point away from now. In the second example, đến tám giờ anchors the noncompletion at eight. Vietnamese does not alter the form of mở to create a pluperfect.

Experiential questions

A question such as Bạn đi Hội An chưa? can ask whether a relevant trip has happened yet. If the question is explicitly about life experience—“Have you ever been?”—speakers often add từng or đã từng:

Here chưa still occupies the question slot: has the experience entered the person's history by now? Từng supplies the experiential viewpoint. Bare chưa negates an expected event; chưa từng is a stronger construction meaning that no such experience has occurred even once. That negative-experience pattern belongs on the Chưa Từng and Never Yet page.

Scope and combinations

Chưa scopes over what follows it. Compare chưa muốn đi “do not yet want to go” with muốn chưa đi—which is not the ordinary way to express that meaning. Object placement can help identify the event whose completion is at issue: chưa đọc cuốn sách ấy means the reading of that book has not occurred.

Vẫn chưa adds that the noncompletion continues despite elapsed time or expectation.

Chưa...được can mean that an action has not yet been possible or permitted, depending on context.

Do not assume every combination is compositional. Chưa chắc is the common expression “not necessarily / not certain,” and it does not simply describe an unfinished act of being certain.

A quick decision aid

Orientation among time and aspect markers

The following contrasts are meanings, not obligatory tense forms:

English has not finished maps well to chưa xong in many contexts, but this is not because chưa is a present-perfect auxiliary. It can be anchored in past or future discourse: Đến mai mà chưa xong thì gọi tôi “If it still isn't finished by tomorrow, call me.”

A dialogue: the same meal at different phases

Chưa leaves the meal available as a future development. Mới đến supplies recent arrival, đang rửa tay places the preparation in progress, and ăn rồi describes the alternative completed state. The markers change the practical conclusion without conjugating ăn.

Common Mistakes

1. Using không for “not yet.” Plain không removes or denies the event; it does not preserve the open expectation.

2. Copying English question order and putting chưa before the predicate. A neutral completion question normally places chưa after the predicate phrase.

3. Treating đã as a mandatory past or perfect marker. Shared context can make it redundant.

4. Adding rồi automatically because English uses the perfect. In a negative “not yet” statement, chưa already supplies the relevant phase contrast.

Key Takeaways

• Statement chưa + predicate means that a relevant event or state has not been realized up to the reference point.
• Question predicate + chưa? asks whether the boundary has been reached; rồi and chưa are common short answers.
• Đã...chưa? makes realization explicit, while từng...chưa? asks about experience.
• Use không for plain negation and chưa for “not yet.” Add vẫn when the delay persists against expectation.
• Vietnamese time interpretation comes from context, temporal phrases, event type, and viewpoint markers—not a compulsory tense paradigm.