Used and loved by millions

Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

I guarantee that

Grammar usage guide and real-world examples

USAGE SUMMARY

"I guarantee that" is correct and usable in written English.
You can use this phrase to express your assurance that something will happen or that a statement is true. For example, "I guarantee that I'll be there on time."

✓ Grammatically correct

News & Media

Sports

Opinion

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

I guarantee that will be more popular.

"I guarantee that would probably make it easier to recruit".

News & Media

The New York Times

After one or two very public dismissals, I guarantee that trust, teamwork and confidentiality will prevail.

News & Media

The New York Times

Can I guarantee that?

News & Media

Huffington Post

"I guarantee that will change," Tilden said.

News & Media

Los Angeles Times

And I guarantee that is just the beginning.

News & Media

HuffPost

I guarantee that.

I guarantee that you will love it.

News & Media

The Guardian

"I guarantee that there have been hundreds.

News & Media

The New York Times

I guarantee that there will be no shortage of applicants.

News & Media

The New York Times

"I guarantee that something major will be found," he says.

News & Media

The Guardian
Show more...

Expert writing Tips

Best practice

Use "I guarantee that" to express strong confidence in a future outcome or the truth of a statement. It's most effective when you have control or significant influence over the situation.

Common error

Avoid using "I guarantee that" too frequently in your writing. Overuse can diminish its impact and make your claims sound less credible. Vary your language by using alternatives like "I assure you", "I'm certain", or "you can be sure".

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 "I guarantee that" functions as a performative utterance, where the act of saying it constitutes making a guarantee. It introduces a statement that the speaker asserts with strong confidence and intention to ensure its truth or fulfillment. Ludwig AI confirms its proper usage and broad application.

Expression frequency: Very common

Frequent in

News & Media

50%

Sports

20%

Opinion

10%

Less common in

Science

8%

Formal & Business

7%

Wiki

5%

Ludwig's WRAP-UP

In summary, "I guarantee that" is a versatile phrase used to express strong confidence and assurance. Ludwig AI validates its grammatical correctness and common usage across various contexts, particularly in news, sports, and opinion pieces. While its assertive tone can be effective, it's important to use it judiciously to maintain credibility. By considering alternative phrases and understanding its purpose, you can effectively convey certainty and build trust with your audience. Remember to avoid overuse and tailor your language to suit the specific context for maximum impact.

FAQs

How to use "I guarantee that" in a sentence?

Use "I guarantee that" to express a strong assurance about something. For example, "I guarantee that you will love it" or "I guarantee that will change."

What can I say instead of "I guarantee that"?

You can use alternatives such as "I assure you that", "I promise you that", or "I'm certain that depending on the context.

When is it appropriate to use "I guarantee that"?

It is appropriate to use "I guarantee that" when you are confident in your ability to deliver a specific outcome or when you are absolutely sure about the truth of a statement. Use it when you want to convey certainty and instill confidence.

What is the difference between "I guarantee that" and "I hope that"?

"I guarantee that" expresses a firm assurance and certainty, while "I hope that" expresses a wish or expectation without any assurance of fulfillment. The former conveys confidence, whereas the latter conveys uncertainty.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

Editing plus AI, all in one place.

Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.

Source & Trust

86%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: