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Grammar point
A2CommonTime and AspectNeutralElementary

Vietnamese 'từng' Usage (Once / Past Experience)

'từng' indicates that someone has had a past experience, emphasizing 'have done before'.

Quick explanation

Quick explanation

'từng' indicates that someone has had a past experience, emphasizing 'have done before'.

English meanings

  • once
  • have had the experience of

Grammar pattern

S + từng + V

Examples

1

Tôi từng học tiếng Anh.

I have studied English before.

2

Bạn đã từng đến Hà Nội chưa?

Have you ever been to Hanoi?

How to use it

'từng' highlights life experiences or past events, not necessarily recent or with direct present results. It is commonly used with verbs like 'have been', 'have studied', or 'have met'.

  • Often combined with 'đã' as 'đã từng'.
  • Suitable for describing experiences, not just recently completed actions.
  • Negation uses 'chưa từng' to mean 'never experienced'.

Compared with English

Compared with English

English uses 'once' or 'have done before' to express past experiences. Vietnamese 'từng' corresponds to this but differs from simple past tense which might use 'đã' or 'rồi'.

Common mistakes

Tôi từng ăn cơm rồi.

Tôi ăn cơm rồi.

For recently completed actions like eating, use 'rồi' instead of 'từng'.

Tôi từng đang học tiếng Việt.

Tôi từng học tiếng Việt.

'từng' expresses past experience and does not combine directly with progressive 'đang'.

Commonly confused grammar

Practice

Multiple choice

Which sentence correctly uses 'từng'?

Show answer
  • Tôi từng học tiếng Anh.
  • Tôi từng ăn cơm rồi.
  • Tôi từng đang học tiếng Việt.

Answer: Tôi từng học tiếng Anh.

Explanation: Often combined with 'đã' as 'đã từng' to indicate past experience.

Fill in the blank

Fill in the blank: Tôi ____ học tiếng Anh.

Show answer

Answer: Tôi từng học tiếng Anh.

Explanation: Commonly used with 'đã' as 'đã từng'.

English to Vietnamese

Translate "I have studied English before." into Vietnamese.

Show answer

Answer: Tôi từng học tiếng Anh.

Explanation: Use từng in the same structure as the example.

True or false

'từng' can replace all English time words without considering whether the action is completed or ongoing.

Show answer

Answer: False

Explanation: Vietnamese aspect markers depend on action state, speech time, and context; they cannot be replaced mechanically by similar English words.

Correction

Correct this sentence: Tôi từng ăn cơm rồi.

Show answer

Answer: Tôi ăn cơm rồi.

Explanation: Recently completed actions like eating use 'rồi', not 'từng'.

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