Xong for Completion | Vietnamese Grammar

Postverbal xong marks completion: an activity, assignment, process, or other bounded event reaches the endpoint speakers treat as “done.” In làm xong báo cáo, writing/doing comes first and the completed result follows. Vietnamese thus packages activity and endpoint into one integrated predicate; xong is a result-bearing element, not an inflection on the first verb.

Completion is not the same as exhaustion. Xong closes the event; hết says that a participant, supply, or relevant set is used up. Compare ăn xong “finish eating” with ăn hết “eat all of it.” The latter is examined on the next page.

The core pattern: activity → completed endpoint

The basic order is V + xong, often with an object between the verb and xong or after xong.

Tôi vừa làm xong báo cáo, giờ chỉ muốn đi ngủ.

I’ve just finished the report; now I only want to sleep.

Đọc xong cuốn sách này, cậu cho mình mượn nhé.

When you’ve finished this book, lend it to me, okay?

In both, xong presents the action as having a conventional endpoint. A report can be complete even though ink, paper, and ideas still exist. What is exhausted is not the issue; the assigned event is complete.

Xong can also stand as the main predicate “be finished/done”:

Việc sửa đường gần xong rồi.

The roadwork is nearly finished.

This predicative use and the result complement are closely related. The complement construction packages the process and its finished state together.

Object placement and information structure

Several orders occur, but they are not always interchangeable in discourse:

Pattern	Example	Typical focus
V + xong + object	làm xong bài tập	completing the named task
V + object + xong	làm bài tập xong	the object is already topical; completion is asserted
V + xong	ăn xong	the activity is recoverable
V + xong + thì/rồi + clause	ăn xong thì gọi	completion sets the boundary for the next event

Khi nào làm bài tập xong thì con mới được xem phim.

Only after you finish your homework may you watch a film.

The whole phrase làm bài tập xong establishes a completed condition. Thì introduces what follows; it is not required inside the resultative predicate itself.

💡

Use xong when you could reasonably ask “Is the task/activity done yet?” The relevant endpoint may be socially defined—submitting a form, reading an assigned chapter, cleaning a room—not necessarily physical depletion.

Xong, hết, and perfective rồi

These forms often co-occur, but they answer different questions:

Tôi ăn xong rồi, nhưng trong nồi vẫn còn cơm.

I’ve finished eating, but there is still rice in the pot.

Tôi ăn hết cơm rồi.

I’ve eaten all the rice.

In the first, the speaker’s meal event is over; rice can remain. In the second, cơm is exhausted. Final rồi updates the discourse: the state now holds. It does not itself supply the lexical notion of completing a specific task.

Likewise, đọc xong bài báo says the reading reached its endpoint; đọc hết các bài báo says every article in the relevant set was read. Context can make both true, but their semantic focus differs.

Negation and incomplete results

Vietnamese normally negates the attained endpoint with chưa “not yet” or không … xong “not finish/cannot get finished.”

Tôi chưa viết xong thư giới thiệu.

I haven’t finished writing the recommendation letter yet.

Ồn thế này thì tôi làm mãi cũng không xong.

With this much noise, I can work forever and still not get it finished.

Chưa leaves open the expectation of later completion. Không … xong denies attainment and can imply that circumstances prevent it. This scope differs from không làm, which denies doing the activity at all.

Event integration and clause boundaries

The same serial architecture appears in familiar minimal contrasts:

Sequence	How the later material functions
đi mua đồ	purpose of motion
mang sách về	homeward path
ăn hết cơm	exhaustive result
mở cửa ra	outward/open result
làm cho tôi hiểu	caused state with its own experiencer

V + xong patterns with action → result. The subject who performs the activity is also responsible for its completion, and any object belongs to that activity. By contrast, làm cho tôi hiểu contains tôi as the understood subject of hiểu and is more clause-like.

When xong introduces a subsequent clause, intonation and a connector expose the boundary:

Tôi sửa xong máy rồi mới gọi khách đến lấy.

I repaired the machine completely before calling the customer to collect it.

The repair and completion form one constituent; rồi mới introduces the later call. English speakers should not insert to between sửa and xong, because xong is not a purpose.

Register and pragmatic force

Xong is neutral and standard across regions. Conversation frequently uses xong chưa? “finished yet?” and xong rồi “done/already finished.” In formal writing, hoàn thành “complete” may replace or accompany xong, especially for institutional milestones, but xong is not slang.

Anh chuẩn bị xong chưa? Xe sắp đến rồi.

Are you ready/finished getting ready? The car is almost here.

With preparation verbs, English translation depends on the activity: chuẩn bị xong is naturally “be ready,” though its structure is still prepare → completion.

A natural dialogue

Linh: Cậu làm xong bản trình bày chưa? — Duy: Phần nội dung xong rồi, nhưng tớ chưa sửa xong biểu đồ. — Linh: Sửa xong thì gửi cho tớ xem nhé.

Linh: Have you finished the presentation? — Duy: The content is done, but I haven’t finished fixing the charts. — Linh: Send it to me when you’ve finished fixing them.

The first làm xong asks whether the whole task reached its endpoint. Predicative xong rồi reports one subtask complete. Chưa sửa xong denies the attained result of editing, and sửa xong thì makes that completion the condition for sending.

Common Mistakes

Inserting an English infinitive marker

❌ Tôi làm để xong báo cáo tối nay.

Wrong for ‘finish the report’; để introduces purpose rather than a completion result.

✅ Tôi sẽ làm xong báo cáo tối nay.

I’ll finish the report tonight.

The corrected order is activity → endpoint. Future sẽ precedes the predicate.

Putting completion before the activity

❌ Tôi xong làm bài tập rồi.

Unnatural order for ‘I finished doing my homework.’

✅ Tôi làm xong bài tập rồi.

I’ve finished my homework.

Xong follows the action whose endpoint it measures.

Using xong when the object’s exhaustion matters

❌ Cả nhà ăn xong rồi.

This says the family has finished eating, but it does not say all the rice in the pot was consumed.

✅ Cả nhà ăn hết cơm trong nồi rồi.

The whole family ate all the rice in the pot.

Use hết when the quantity of rice reaches zero.

Treating xong as an independent second action

❌ Tôi viết báo cáo rồi việc đó xong.

Possible as two clauses, but needlessly separates the activity from its result.

✅ Tôi đã viết xong bài luận.

I’ve finished writing the essay.

The compact resultative directly links writing to its attained endpoint.

Key Takeaways

V + xong means that the event reaches its intended or conventional endpoint.
Both V + xong + object and V + object + xong occur; information structure and lexical preference influence the choice.
Xong completes an event, hết exhausts a participant or set, and rồi marks a changed/current discourse state.
Chưa V xong means “not finished yet”; không V xong denies successful completion.

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