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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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I'm unable to

Grammar usage guide and real-world examples

Human-verified examples from authoritative sources

Exact Expressions

53 human-written examples

I'm unable to get to her".

News & Media

The New York Times

A dimension I'm unable to see into".

Today, I'm unable to see it.

The sort I'm unable to grow and am jealous of.

News & Media

Independent

What if I'm unable to produce the card?

When I'm unable to sleep, I can watch our baby.

News & Media

The New Yorker
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Human-verified similar examples from authoritative sources

Similar Expressions

7 human-written examples

(I was unable to reach Bejan).

News & Media

The New Yorker

I am unable to tell you.

News & Media

The New York Times

I am unable to report success.

News & Media

The New Yorker

I was unable to resuscitate her.

News & Media

The New Yorker

I was unable to assist him.

News & Media

The New Yorker
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Expert writing Tips

Best practice

Use "I'm unable to" to politely decline requests or explain why you cannot fulfill a certain action. It's a gentler alternative to "I can't."

Common error

While polite, consistently using "I'm unable to" can sound repetitive. Vary your phrasing with alternatives like "Unfortunately, I cannot" or "Due to circumstances, I am not in a position to" for a more nuanced tone.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "I'm unable to" functions as an adjective phrase modifying an implied verb, indicating a lack of capability or possibility. Ludwig shows it's commonly followed by an infinitive verb to specify the action that cannot be performed. It serves to express inability or restriction.

Expression frequency: Very common

Frequent in

News & Media

58%

Science

32%

Formal & Business

10%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "I'm unable to" is a versatile and commonly used phrase to express an inability to perform an action. According to Ludwig, it's grammatically correct and suitable for a wide range of contexts, from news reports to scientific publications. While neutral in register, it leans slightly towards formality and is preferred when a polite but direct explanation is required. While "I cannot" is a more direct alternative, "I'm unable to" provides a gentler tone. Keep in mind the potential for repetition and remember to diversify with synonymous phrases when appropriate.

FAQs

What can I say instead of "I'm unable to"?

You can use alternatives like "I cannot", "I am not able to", or "I am incapable of" depending on the context.

Is "I'm unable to" formal or informal?

"I'm unable to" is generally considered neutral to slightly formal. It's suitable for most professional and polite contexts, but more formal alternatives exist for highly official situations.

How to use "I'm unable to" in a sentence?

You can use "I'm unable to" followed by a verb indicating the action you cannot perform. For example, "I'm unable to attend the meeting" or "I'm unable to provide further assistance at this time".

What's the difference between "I'm unable to" and "I'm not able to"?

The phrases "I'm unable to" and "I am not able to" are nearly synonymous. "I'm unable to" might be perceived as slightly more formal, but the difference is minimal in most contexts.

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Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: