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Grammar point
B1CommonConditionalsNeutralIntermediate

Vietnamese 'hễ ... là' Usage (whenever... then)

'hễ ... là' is commonly used to express 'whenever... then', an important structure for English speakers learning Vietnamese.

Quick explanation

Quick explanation

'hễ ... là' is commonly used to express 'whenever... then', an important structure for English speakers learning Vietnamese.

English meanings

  • whenever... then

Grammar pattern

Hễ + condition, là + result

Examples

1

Hễ trời mưa là đường kẹt xe.

Whenever it rains, the roads get congested.

2

Hễ rảnh là tôi đọc sách.

Whenever I have free time, I read books.

How to use it

'hễ ... là' means 'whenever... then...', emphasizing that whenever a certain condition occurs, the result naturally or habitually follows.

  • 'hễ' introduces the condition, 'là' introduces the inevitable or usual result.
  • Commonly used to describe habits, regular occurrences, or natural reactions.
  • For a neutral 'if', use 'nếu ... thì' instead.

Compared with English

Compared with English

In English, 'whenever I have free time, I read books' expresses a repeated habit; similarly, Vietnamese 'hễ ... là' emphasizes regular or habitual conditions, not a single hypothetical event.

Common mistakes

Hễ trời mưa thì đường kẹt xe.

Hễ trời mưa là đường kẹt xe.

'hễ' is usually paired with 'là' to indicate that the condition always leads to the result.

Hễ ngày mai mưa là tôi ở nhà.

Nếu ngày mai mưa thì tôi ở nhà.

For a one-time future condition, 'nếu ... thì' is more natural; 'hễ' implies repeated or habitual conditions.

Commonly confused grammar

Practice

Multiple choice

What kind of condition does 'hễ ... là' usually express?

Show answer
  • repeated conditions and results
  • simple purpose
  • past perfect

Answer: repeated conditions and results

Explanation: 'hễ' conveys a habitual or regular 'whenever... then...' meaning.

Fill in the blank

Fill in the blank: ____ đường kẹt xe.

Show answer

Answer: Hễ trời mưa là đường kẹt xe.

Explanation: 'hễ' introduces the condition, 'là' introduces the inevitable or usual result.

English to Vietnamese

Translate "Whenever it rains, the roads get congested." into Vietnamese.

Show answer

Answer: Hễ trời mưa là đường kẹt xe.

Explanation: Use hễ ... là in the same structure as the example.

True or false

True or False: Hễ trời mưa thì đường kẹt xe.

Show answer

Answer: False

Explanation: 'hễ' is usually paired with 'là' to indicate that the condition always leads to the result.

Correction

Correct this sentence: Hễ tôi đói thì tôi ăn phở.

Show answer

Answer: Hễ tôi đói là tôi ăn phở.

Explanation: 'hễ' is commonly followed by 'là' to introduce the result.

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