has not changed since

USAGE SUMMARY

The phrase "has not changed since" is correct and can be used in written English.
You can use it when you want to make a comparison between the present and the past. For example, "The town's population has not changed since the last census ten years ago."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

55 human-written examples

That advice has not changed since 2003.

The New York Times

That number has not changed since then.

The New York Times

The policy has not changed since then.

The New York Times

That culture has not changed since the 2016 referendum.

The Washington Post

That headline has not changed since it first published.

The Washington Post

"He has not changed since Friday," Cotton said.

The Washington Post

Human-verified similar examples from authoritative sources

Similar Expressions

5 human-written examples

The minimum wage has not changed since 2009.

The Economist

"My stance has not changed since last week - he's not playing for us (at the moment).

Independent

That much has not changed since last week.

BBC

That number has not changed since 1993.

Forbes

In terms of the service's offering itself – that has not changed since last year.

TechCrunch

Expert writing Tips

Best practice

When using "has not changed since", ensure the timeframe you are referencing is clearly defined and easily understood by your audience. For example, "The company's policy on remote work has not changed since the pandemic began."

Common error

Avoid using "has not changed since" with a future date or event. This phrase is used to describe something that has remained constant from a point in the past until now. A sentence like "The regulations have not changed since the new law will take effect" is incorrect; the law hasn't taken effect yet.

Linguistic Context

The phrase "has not changed since" functions as a stative verb phrase indicating that something has remained constant from a specified point in time. Ludwig provides examples from varied contexts, demonstrating its wide applicability.

Expression frequency: Very common

Frequent in

News & Media

64%

Academia

19%

Science

17%

Less common in

Formal & Business

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, "has not changed since" is a versatile phrase used to denote continuity from a past point until the present. As confirmed by Ludwig, this phrase is grammatically correct and frequently used in various contexts, particularly in news, academic, and scientific domains. While semantically straightforward, ensuring correct tense and a clear reference point are crucial for effective communication. For alternatives, consider "has remained the same since" or "has stayed consistent since" to subtly alter the emphasis, as needed.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

has remained the same since

Emphasizes the continuity and lack of alteration from a previous time.

has stayed consistent since

Highlights the unbroken consistency and adherence to a prior state.

has been constant since

Indicates an unwavering state from a specific point in the past.

has not been altered since

Focuses specifically on the absence of any modifications since a given time.

has been maintained since

Highlights the preservation of a specific condition or state from a past point.

has persisted since

Emphasizes the continuation of something, often despite potential challenges, from a specific time.

has endured since

Focuses on the lasting nature and resilience of something since a prior time.

has held steady since

Implies a stable condition without significant fluctuation since a particular time.

has been preserved since

Indicates that something has been carefully maintained in its original condition since a specific time.

has been untouched since

Highlights the complete absence of any changes or modifications since a given time.

FAQs

How to use "has not changed since" in a sentence?

Use "has not changed since" to indicate that something has remained the same from a specific point in the past until the present. For example, "The recipe "has not changed since 1950"."

What can I say instead of "has not changed since"?

You can use alternatives like "has remained the same since", "has stayed consistent since", or "has been constant since" depending on the context.

Is it correct to say "have not changed since"?

The correctness of "have not changed since" depends on the subject. Use "have not changed since" with plural subjects or with "I", "you", "we", or "they". For singular subjects, use "has not changed since". For example, "The rules have not changed since last year", but "The rule has not changed since last year".

What's the difference between "has not changed since" and "remained unchanged since"?

"Has not changed since" and "remained unchanged since" are semantically very similar. "Remained unchanged since" might subtly emphasize a more active state of resisting change, whereas "has not changed since" is a more neutral statement of fact.