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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 can guarantee

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "I can guarantee" is correct and usable in written English.
You can use it when you want to express a strong assurance or promise about something. Example: "I can guarantee that our product will meet your expectations and provide the quality you desire."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

"I can guarantee it".

News & Media

The New York Times

I can guarantee you that".

News & Media

Forbes

"That, I can guarantee you.

I can guarantee blood and guts.

News & Media

Independent

"And I can guarantee I won't".

News & Media

The New York Times

I can guarantee it's not here".

News & Media

Independent

I can guarantee the quality of care".

News & Media

The New York Times

That, I can guarantee, is not it.

News & Media

The New York Times

"I can guarantee it because it's me".

I can guarantee you that -- very tired".

"Yeah, I can guarantee a win.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

Use "I can guarantee" to express strong confidence in a predictable outcome or to reassure someone of a specific result. It's most effective when you have direct control or substantial evidence to support your claim.

Common error

Avoid using "I can guarantee" when the outcome is uncertain or beyond your control. Overpromising can damage your credibility if the guaranteed result doesn't materialize.

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 can guarantee" functions as an assertive expression. It is used to make a strong declaration of certainty or assurance, functioning to convince or reassure the listener of a specific outcome or truth. Ludwig AI confirms that this phrase is correct and usable.

Expression frequency: Very common

Frequent in

News & Media

88%

Formal & Business

6%

Science

3%

Less common in

Wiki

1%

Encyclopedias

1%

Reference

1%

Ludwig's WRAP-UP

In summary, the phrase "I can guarantee" is a versatile expression used to convey a high degree of certainty and assurance. Ludwig AI analysis confirms its correctness and usability. It functions primarily to reassure and instill confidence, with applications spanning neutral registers, particularly in news media. Related phrases include "I assure you" and "I promise you", each carrying similar yet nuanced implications. Use "I can guarantee" judiciously, ensuring the outcome is within your control to maintain credibility. This phrase is very common across multiple contexts.

FAQs

How can I use "I can guarantee" in a sentence?

Use "I can guarantee" to express a high level of confidence in a statement, such as "I can guarantee you will enjoy the movie" or "I can guarantee the quality of our services".

What are some alternatives to "I can guarantee"?

You can use alternatives like "I assure you", "I promise you", or "you can rest assured" to express similar levels of certainty and confidence.

Is it better to say "I can guarantee" or "I guarantee"?

"I can guarantee" and "I guarantee" are both acceptable, but "I can guarantee" adds a slightly more personal touch. Consider the context and audience when choosing between the two.

When is it inappropriate to use "I can guarantee"?

It's best to avoid "I can guarantee" when the outcome is uncertain or heavily dependent on external factors outside of your control. Overusing it can undermine your credibility if you fail to deliver on your "guarantee".

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Source & Trust

86%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: