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CEO of Professional Science Editing for Scientists @ prosciediting.com

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Three decades ago

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "Three decades ago" is correct and usable in written English.
It can be used to refer to a time period that is thirty years in the past. Example: "Three decades ago, the world was a very different place, with technology and culture evolving rapidly."

✓ Grammatically correct

Science

News & Media

Formal & Business

Human-verified similar examples from authoritative sources

Similar Expressions

60 human-written examples

More than 9,000 women were involved originally, and were divided into three groups.

News & Media

The Economist

What happened four months ago is forgotten, whether that's good, bad or indifferent.

"They gave me their word a year ago and now I want them to honour that.

"It's only what happened a couple of weeks ago or next week that matters.

Specifically, the Nasdaq excludes anyone who was employed the company in the past three years.

News & Media

The New York Times

Since last July the state has opted to use just one massive dose of the sedative pentobarbital as its lethal injection, instead of a cocktail of three different drugs.

News & Media

The Guardian

"Five years ago I stood here and said we had made history here in Brighton," Lucas said to loud cheers inside the Brighton Centre conference venue.

News & Media

The Guardian

The shares have underperformed the market by 6% in the last three months and now trade at a discount to the oil service peers.

Behind this summer's heat are greenhouse gases emitted decades ago.

News & Media

The Economist

Congress is currently considering a bill increasing the minimum wage to $10.10 over the next three years.

News & Media

The Economist

But the fact that more than fifteen per cent of personal consumption expenditures now go to medical care, when in 1930 only three per cent of personal consumption did, isn't a reflection of frivolity, and that's not going to change any time soon.

News & Media

The Economist
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Expert writing Tips

Best practice

Use "three decades ago" to provide historical context, grounding current events in a relatable timeframe. For instance, "Three decades ago, the internet was in its infancy, and now it dominates global communication."

Common error

Avoid using "three decades ago" when you actually mean a different time frame. For example, don't use it if you are referring to a period of 20 or 40 years; use the specific number of years or a more general term like "many years ago".

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

60%

Authority and reliability

3.5/5

Expert rating

Real-world application tested

Linguistic Context

"Three decades ago" functions as an adverbial phrase of time, specifying when something occurred. It pinpoints a period approximately thirty years prior to the present, providing temporal context.

Expression frequency: Missing

Frequent in

Science

0%

News & Media

0%

Formal & Business

0%

Less common in

Science

0%

News & Media

0%

Formal & Business

0%

Ludwig's WRAP-UP

In summary, "three decades ago" is a grammatically sound and clear way to refer to a time period approximately thirty years in the past. Ludwig AI indicates the phrase is correct but there are no examples provided in the data. While "thirty years ago" offers a more direct alternative, "three decades ago" provides a slightly broader sense of historical context. It's important to use the phrase accurately, ensuring it aligns with the intended timeframe to avoid confusion. Alternative phrases like "in the past thirty years" can also be useful for adding variety to your writing.

FAQs

How can I use "three decades ago" in a sentence?

Use "three decades ago" to set a point in time approximately thirty years in the past, such as, "Three decades ago, personal computers were not as ubiquitous as they are today."

What is a more formal way to say "three decades ago"?

A more formal alternative to "three decades ago" could be "in the past thirty years" or "over the course of three decades". These alternatives provide a similar meaning but in a slightly more formal tone.

Is it better to say "three decades ago" or "thirty years ago"?

Both "three decades ago" and "thirty years ago" are correct. The choice depends on the context and desired tone. "Thirty years ago" is more direct, while "three decades ago" can add a sense of historical perspective.

What's the difference between "a few decades ago" and "three decades ago"?

"A few decades ago" refers to an unspecified number of decades, usually more than two, indicating a general period in the past. "Three decades ago" specifically means thirty years in the past.

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Real-world application tested

Most frequent sentences: