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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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for two decades

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "for two decades" is correct and usable in written English.
It can be used to indicate a time period of twenty years, often in contexts discussing history, experience, or duration of an event. Example: "The organization has been advocating for environmental protection for two decades, making significant strides in policy change."

✓ Grammatically correct

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Crime has been falling for two decades.

News & Media

The Economist

She performed with it for two decades.

News & Media

The New York Times

Some had been teammates for two decades.

He taught for two decades, then retired.

News & Media

The New York Times

He has been there for two decades.

News & Media

The New York Times

I've been here now for two decades.

News & Media

The Guardian

He hasn't edited for two decades.

News & Media

The Guardian

Scientists puzzled for two decades over this seemingly unnecessary withholding.

For two decades Medicare has been experimenting with bundled payments.

News & Media

The New York Times

Mr. Pinault has owned Château Latour for two decades.

News & Media

The New York Times

They have not won an election outright for two decades.

News & Media

Independent
Show more...

Expert writing Tips

Best practice

Use "for two decades" to provide a concise and easily understood time frame, especially when discussing long-term trends or historical developments.

Common error

Avoid using "since two decades" when you mean "for two decades". 'Since' indicates a starting point, not a duration. For example, say "the company has been successful for two decades", not "since two decades".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

86%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "for two decades" functions as an adverbial phrase of duration, specifying the length of time over which an action, event, or state has occurred. As Ludwig AI confirms, it is a common and correct way to express a twenty-year period.

Expression frequency: Very common

Frequent in

News & Media

78%

Academia

12%

Formal & Business

3%

Less common in

Wiki

3%

Science

2%

Reference

2%

Ludwig's WRAP-UP

In summary, "for two decades" is a versatile and grammatically sound phrase used to indicate a duration of twenty years. Ludwig AI confirms its correctness, and it appears frequently across various contexts, particularly in news and academic writing. When using this phrase, ensure you're referring to a length of time and not a specific point in the future or past. Alternatives like "over the past twenty years" can offer slight variations in emphasis, but "for two decades" remains a clear and effective choice for expressing this duration.

FAQs

How can I use "for two decades" in a sentence?

Use "for two decades" to specify a period of twenty years. For example, "The program has been running "for two decades"", indicating it has existed continuously over that time.

What are some alternatives to the phrase "for two decades"?

You can use alternatives like "over the past twenty years", "during the last twenty years", or "in the last twenty years" to convey a similar meaning.

Is it more appropriate to say "for two decades" or "in two decades"?

"For two decades" is used to specify a duration, while "in two decades" indicates a point in the future. Example: "The study will be completed "in two decades"", meaning twenty years from now. "The study has been ongoing "for two decades"", meaning it has lasted twenty years.

What is the difference between "for two decades" and "two decades ago"?

"For two decades" indicates a period of twenty years, whereas "two decades ago" refers to a point in time twenty years in the past. For example, "The law was enacted "two decades ago"", but "The law has been in effect "for two decades"".

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Source & Trust

86%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: