I will guarantee that

USAGE SUMMARY

The phrase "I will guarantee that" is correct and usable in written English.
You can use it when you want to assure someone that a certain outcome or condition will definitely happen. Example: "I will guarantee that the project will be completed on time, no matter the challenges we face."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

7 human-written examples

I will guarantee that it would not harm a child.

The New Yorker

I cannot guarantee titles but I will guarantee that we will do everything to be successful in the season," he said.

The Guardian - Sport

And let me say that if you entrust me with the presidency, I will guarantee that a woman's right to choose is protected".

The New York Times

Jessen Myburgh, 27, a bride-to-be from Seattle, said, "I will guarantee that there will be a crowd of barefoot, elbowing women jumping when I throw those flowers".

The New York Times

"If we rush development imprudently, I will guarantee that we will get less-than-satisfactory results," General Kadish told members of the House Subcommittee on Military Research and Development.

The New York Times

If you are quite ugly I will guarantee that when we meet we have the time of our lives; if you are plain, of a moderate plainness, I will promise you not to be too damnably polite or stiff; but if you are beautiful Heaven help me; I shall shut up like a sea anemone".

Independent

Human-verified similar examples from authoritative sources

Similar Expressions

51 human-written examples

Go and watch this video of a little Japanese robot making coffee, and I'll guarantee that it makes you break out into a smile.

The Guardian - Tech

I'll guarantee that.

Huffington Post

I'll guarantee that students who do will find friends faster and feel more comfortable with the change in their social setting than those who don't.

Huffington Post

"What I will guarantee is that I will be doing my utmost to ensure that we continue to provide the range of services that we currently provide".

BBC

But they will come out all guns blazing [for the bronze-medal match], I will guarantee you that".

The Guardian - Sport

Expert writing Tips

Best practice

Use "I will guarantee that" when you want to express a firm commitment or assurance about a future outcome. Make sure the context justifies such a strong declaration of certainty.

Common error

Avoid using "I will guarantee that" in situations where you cannot realistically control the outcome. Overusing such strong language can damage your credibility if the guaranteed result does not materialize.

Linguistic Context

The phrase "I will guarantee that" functions as a declarative statement, used to express a firm assurance or promise. As Ludwig AI indicates, this phrase is considered grammatically correct. Examples show its use in contexts ranging from politics to personal commitments.

Expression frequency: Uncommon

Frequent in

News & Media

82%

Formal & Business

9%

Wiki

6%

Less common in

Science

3%

Academia

0%

Encyclopedias

0%

Ludwig's WRAP-UP

The phrase "I will guarantee that" is a grammatically correct declarative statement used to express a firm assurance or promise. While considered neutral in register, it's most commonly found in news and media contexts. Ludwig AI confirms its proper usage, highlighting its function to convey certainty and build trust. When using this phrase, ensure you have a high degree of confidence and control over the promised outcome, as overuse or unfulfilled guarantees can damage credibility. Consider alternatives like "I assure you that" or "I promise you that" for slightly less formal or more personal contexts.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

I assure you that

Replaces 'guarantee' with 'assure', implying a slightly less formal but equally confident promise.

I can assure you that

Adds 'can' to soften the tone while maintaining a high level of confidence.

I promise you that

Substitutes 'guarantee' with 'promise', providing a more personal assurance.

You can rest assured that

Shifts the focus to the recipient, offering comfort and certainty about the outcome.

I give you my word that

Emphasizes the personal commitment and sincerity of the assurance.

I can confirm that

Replaces 'guarantee' with 'confirm', indicating a statement of fact based on available information.

It is my firm belief that

Conveys a strong conviction about the truth or certainty of a statement.

I'm certain that

Uses 'certain' to denote a high degree of confidence in the outcome.

I'm sure that

Similar to 'certain', but slightly less emphatic, conveying confidence.

I'm convinced that

Indicates a strong belief based on evidence or reasoning.

FAQs

What does "I will guarantee that" mean?

The phrase "I will guarantee that" means you are making a firm promise or assurance that something will definitely happen or be true. It conveys a high level of certainty and commitment.

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

It's appropriate to use "I will guarantee that" when you have a high degree of confidence and control over the outcome you're assuring. Use it in situations where you're prepared to be held accountable for the result.

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

You can use alternatives like "I assure you that", "I promise you that", or "you can rest assured that" depending on the context and level of formality.

Is "I will guarantee that" formal or informal?

"I will guarantee that" is generally considered neutral to slightly formal. While not overly stiff, it's more assertive than a casual expression of hope or expectation.