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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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is sure

Grammar usage guide and real-world examples

USAGE SUMMARY

"is sure" is a correct and commonly used phrase in written English.
It can be used in various contexts to express certainty or confidence in something. For example: - "I am sure that I left my phone on the kitchen counter." - "She is sure to win the competition with her talent and hard work." - "We are not completely sure, but we believe the results will be positive." - "He is sure to be disappointed when he finds out the truth." - "The team is sure of their victory after months of preparation."

✓ Grammatically correct

News & Media

Wiki

Science

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

One thing is sure.

News & Media

The New York Times

But nobody is sure.

News & Media

The New York Times

THIS much is sure.

News & Media

The Economist

No one is sure.

News & Media

The New York Times

Nothing is sure".

Their liberation is sure.

News & Media

The New York Times

The prosecutor is sure.

News & Media

The New York Times

-- is sure to sympathize.

News & Media

The New York Times

One thing though is sure.

News & Media

Independent

He is sure about that.

News & Media

The New Yorker

He is sure of that.

Show more...

Expert writing Tips

Best practice

Use "is sure" when you want to express a strong belief or expectation about something. It's suitable for a variety of contexts, from casual conversation to formal writing.

Common error

While versatile, avoid overusing "is sure" in highly formal documents. Alternatives like "is certain" or "is guaranteed" may lend a more professional tone.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "is sure" functions as a verbal phrase expressing a high degree of certainty or expectation. According to Ludwig AI, it is a grammatically correct and frequently used construction in the English language.

Expression frequency: Very common

Frequent in

News & Media

45%

Wiki

20%

Science

15%

Less common in

Formal & Business

10%

Encyclopedias

5%

Reference

5%

Ludwig's WRAP-UP

In summary, "is sure" is a versatile phrase employed to express a high degree of confidence or expectation. Grammatically sound and frequently utilized, it seamlessly integrates into diverse contexts, as confirmed by Ludwig. While suitable for varied writing styles, judicious use is advised in formal settings where alternatives like "is certain" might be more appropriate. Its prevalence in news, media, and wiki sources underscores its broad applicability, rendering it a valuable tool in your linguistic repertoire.

FAQs

How can I use "is sure" in a sentence?

You can use "is sure" to express certainty or a strong belief about something. For example, "She "is sure to win"" or "He "is sure of that"".

What are some alternatives to "is sure"?

Some alternatives include "is certain", "is guaranteed", "is likely to", or "is bound to", depending on the level of certainty you wish to convey.

Which is more formal, "is sure" or "is certain"?

"Is certain" generally carries a more formal tone than "is sure". While both express confidence, "is certain" is often preferred in professional or academic writing.

Can "is sure" be used in all types of writing?

Yes, "is sure" is versatile and can be used in various writing styles, from informal conversations to formal documents. However, consider the context and audience to ensure the tone is appropriate.

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Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: