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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 guarantee

Grammar usage guide and real-world examples

USAGE SUMMARY

"I guarantee" is correct and usable in written English.
You can use it to express certainty or assurance that something is true or a promise that you will fulfill something. For example: "I guarantee I will have the report to you by Friday."

✓ Grammatically correct

News & Media

Sports

Opinion

Business

Lifestyle

Tech

Arts

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

I guarantee three hours.

News & Media

The New York Times

"I guarantee you that".

News & Media

The New York Times

I guarantee it".

News & Media

The New York Times

"I guarantee it," he said.

News & Media

The New York Times

I guarantee they will.

I guarantee that.

I guarantee they'll move".

News & Media

The New York Times

"I guarantee you'll be a mess".

I guarantee it," into popular culture.

News & Media

The New York Times

"I guarantee you might win," he promised.

News & Media

The New York Times

"I guarantee you they were thinking it".

Show more...

Expert writing Tips

Best practice

Use "I guarantee" when you are confident in the outcome and willing to stand behind your statement. It's a strong assertion, so ensure you can deliver on what you guarantee.

Common error

Avoid using "I guarantee" excessively, as it can make you sound overly assertive or even insincere. Use it sparingly for emphasis when truly needed, and consider alternatives like "I assure you" or "I'm confident" in other situations.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

89%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "I guarantee" functions as a declarative statement used to express a firm assurance or promise. Ludwig examples showcase its use to convey confidence in a future outcome or the truthfulness of a statement. As confirmed by Ludwig AI, this usage is correct and common.

Expression frequency: Very common

Frequent in

News & Media

45%

Sports

15%

Formal & Business

10%

Less common in

Lifestyle

8%

Tech

7%

Arts

5%

Ludwig's WRAP-UP

In summary, "I guarantee" is a versatile phrase used to express certainty and assurance. Ludwig AI confirms its grammatical correctness and common usage. It is frequently found in news, media, and sports contexts. While suitable for many situations, consider alternative phrases like "I assure you" in more formal settings or when aiming for less assertive tone. Remember to use "I guarantee" responsibly, ensuring you can uphold the commitment it conveys. Overusing it can diminish its impact.

FAQs

How to use “I guarantee” in a sentence?

You can use "I guarantee" to express certainty about a future outcome, such as "I guarantee you will like it", or to emphasize the truthfulness of a statement, as in "I guarantee it is true".

What can I say instead of “I guarantee”?

You can use alternatives like "I assure you", "I promise you", or "you can be certain" depending on the context.

Is “I guarantee you” grammatically correct?

Yes, "I guarantee you" is grammatically correct. It's often followed by a statement or a clause indicating what you are guaranteeing. For example, "I guarantee you will succeed".

What's the difference between “I guarantee” and “I hope”?

"I guarantee" expresses a strong assurance and certainty, while "I hope" expresses a desire or wish for something to happen but without any assurance. “"I guarantee it"” suggests a confident prediction, while “"I hope so"” expresses a wish but acknowledges uncertainty.

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Source & Trust

89%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Most frequent sentences: