# Do: due to in Vietnamese (A2)

> Do means "because of" or "due to". It's the word you'll see in the news and on notices, where everyday speech would use vì or tại vì: Chuyến bay bị hủy…

Source: https://vietnamesebuddy.com/grammar/do-due-to/ · Updated 2026-10-17

**due to**

Pattern: `do + [noun or sentence] · [result] + là do + [cause]`

Level: A2 (our estimate) · Register: formal

*Do* means "because of" or "due to". It's the word you'll see in the news and on notices, where everyday speech would use *vì* or *tại vì*: *Chuyến bay bị hủy do thời tiết xấu.* The flight was cancelled due to bad weather.

Like *vì*, it goes before a noun or a whole sentence. When the reason comes first, the result starts with *nên* (so): *Do mưa lớn nên nhiều đường bị ngập.* Because of the heavy rain, many streets are flooded.

In conversation, *do* lives on in *là do*, "it's because of", when you explain what caused something: *Em tới trễ là do kẹt xe.* I was late because of the traffic. *Chắc là do …* makes a gentle guess at the cause: *Chắc là do anh làm việc nhiều quá.* It's probably because you work too much.

Don't confuse it with *do* before a person and a verb, which says who made or did something: *Bài này do chị Lan viết.* Lan wrote this article. There, *do* is followed by the doer, not the reason.

## Examples

- Chuyến bay bị hủy do thời tiết xấu. — The flight was cancelled due to bad weather.
- Saigon: Do mưa lớn nên nhiều đường bị ngập. | Hà Nội: Do mưa to nên nhiều đường bị ngập. — Because of the heavy rain, many streets are flooded.
- Học sinh được nghỉ học do bão. — Pupils are off school because of the storm.
- Giá rau tăng do mưa kéo dài. — Vegetable prices have gone up due to the prolonged rain.

## Words in this pattern

- [do](https://vietnamesebuddy.com/words/do-because-of/#s_do_because_of): because of

## Compare

- [Because: vì / tại vì / bởi vì](https://vietnamesebuddy.com/grammar/vi-because/): because (of)
- [Made or written by: do + doer + verb](https://vietnamesebuddy.com/grammar/do-passive-agent/): by (the doer)

Previous in Linking ideas: [But (unexpectedly), and yet: mà](https://vietnamesebuddy.com/grammar/ma-but-unexpected/)
Next in Linking ideas: [If (you) were to: person + mà + verb … thì](https://vietnamesebuddy.com/grammar/ma-if-hypothetical/)

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