# Làm sao: how / how could? in Vietnamese (B1)

> Làm sao asks "how", and where it goes changes the feel. At the start of a question it often carries surprise, "how on earth": Làm sao anh biết?

Source: https://vietnamesebuddy.com/grammar/lam-sao-how/ · Updated 2026-10-17

**how / how could?**

Pattern: `[person] + [verb] + làm sao? · Làm sao + [person] + [verb]?`

Level: B1 (our estimate) · Register: everyday

Typed without accents: lam sao

*Làm sao* asks "how", and where it goes changes the feel. At the start of a question it often carries surprise, "how on earth": *Làm sao anh biết?* How did you know?

With *để* (in order to) after it, it's the practical "how do I …?", for directions, problems and instructions: *Làm sao để đi tới chợ Bến Thành?* How do I get to Bến Thành market? At the end, after a verb, it asks how something is done: *Cái này mở làm sao?* How does this open?

*Giờ làm sao?* or *Làm sao bây giờ?* means "What do we do now?", when something has gone wrong. And *bị làm sao* is a set question about someone's health or mood: *Em bị làm sao vậy?* What's wrong? Are you all right?

You know *sao* and *thế nào* for "how" and "what's it like". *Làm sao* is more about how to manage something. With *được* at the end, it turns into "how could I possibly", meaning you can't: *Làm sao em quên được?* How could I ever forget?

## Examples

- Làm sao anh biết? — How did you know?
- Saigon: Làm sao để đi tới chợ Bến Thành? | Hà Nội: Làm sao để đến chợ Bến Thành? — How do I get to Bến Thành market?
- Mất chìa khóa rồi, giờ làm sao? — I've lost the key. What do we do now?
- Saigon: Em bị làm sao vậy? Nhìn em mệt quá. | Hà Nội: Em bị làm sao thế? Trông em mệt quá. — What's wrong? You look really tired.

## Compare

- [How? What is it like? sao / thế nào](https://vietnamesebuddy.com/grammar/the-nao-how/): how / what like?
- [How could that be! làm sao … được](https://vietnamesebuddy.com/grammar/lam-sao-duoc-rhetorical/): that can't happen

Previous in Asking questions: [Any … at all: bất cứ / bất kỳ](https://vietnamesebuddy.com/grammar/bat-cu-any/)
Next in Asking questions: [I wonder whether: liệu … (có) … không?](https://vietnamesebuddy.com/grammar/lieu-wonder/)

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