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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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they used to be

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "they used to be" is a correct and widely-used expression in written English.
It is used to express that something has changed from an earlier time. For example, "They used to be friends, but now they are estranged."

✓ Grammatically correct

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

They used to be offering us help.

News & Media

Independent

They used to be.

News & Media

The New York Times

They used to be impaled.

News & Media

Independent

They used to be inseparable.

News & Media

The New Yorker

"They used to be darker.

News & Media

The New York Times

They used to be illegal".

News & Media

The New Yorker

Or at least, they used to be.

News & Media

The New York Times

They used to be scary blurry".

They used to be surreptitious.

News & Media

The New York Times

Or they used to be.

News & Media

The New York Times

They used to be gravel.

Show more...

Expert writing Tips

Best practice

Use "they used to be" to clearly indicate a change over time, contrasting a past state with the current one. This helps to highlight transformations and shifts in conditions or attributes.

Common error

Avoid using "they used to be" when referring to something that is still true or was only true for a very brief, recent period. This phrase implies a more significant duration in the past.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

94%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "they used to be" functions as a verbal phrase indicating a past state, condition, or habit that is no longer true in the present. As Ludwig AI confirms, it's a correct and widely used expression. Examples from Ludwig show its application in describing changes across various domains.

Expression frequency: Very common

Frequent in

News & Media

60%

Academia

20%

Formal & Business

10%

Less common in

Science

5%

Encyclopedias

3%

Reference

2%

Ludwig's WRAP-UP

In summary, the phrase "they used to be" is a grammatically correct and widely used expression for indicating a past state that no longer holds true. Ludwig AI confirms its validity and common usage. As seen in the numerous examples provided by Ludwig, it appears frequently in News & Media and Academic contexts. While generally neutral in register, it's essential to use it accurately, ensuring the context reflects a genuine change over time. Remember to consider alternatives like "they once were" for varied expression.

FAQs

How can I use "they used to be" in a sentence?

Use "they used to be" to describe a state or condition that existed in the past but is no longer true. For example, "They used to be friends, but now they are rivals."

What is a simple alternative to "they used to be"?

A simple alternative is "they once were". For example, instead of saying "they used to be inseparable", you could say "they once were inseparable."

Is "they used to be" grammatically correct?

Yes, "they used to be" is grammatically correct. It is a common and accepted way to express a past state or habit that is no longer the case.

What's the difference between "they used to be" and "they were"?

"They were" simply describes a past state. "They used to be" implies that the state has changed. For example, "They were neighbors" just states a fact about the past, while "They used to be neighbors" suggests they are no longer neighbors.

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Source & Trust

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Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: