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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
CEO of Professional Science Editing for Scientists @ prosciediting.com
will be key
Grammar usage guide and real-world examplesUSAGE SUMMARY
"will be key" is a correct and usable phrase in written English.
You can use it when referring to something that will be essential or influential. For example, "Teamwork and collaboration will be key to achieving success."
✓ Grammatically correct
News & Media
Science
Formal & Business
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
US and Russian pressure will be key.
News & Media
Trust will be key".
News & Media
All of that will be key.
News & Media
Content will be key as channels proliferate.
News & Media
The Sun's political coverage will be key.
News & Media
The first game will be key.
News & Media
Andy Gomarsall will be key as well.
News & Media
"The next few weeks will be key".
News & Media
The issues Europe will be key.
News & Media
"It will be key to make no mistakes," Sarrazin acknowledged.
News & Media
Putting these kickers under pressure will be key for England.
News & Media
Expert writing Tips
Best practice
Use "will be key" to emphasize the importance of a specific action, strategy, or element in achieving a desired outcome. Be specific about what 'it' refers to for clarity.
Common error
Avoid using "will be key" in overly passive constructions. Instead of saying "Success will be key to be achieved by teamwork", opt for a more direct and active voice: "Teamwork "will be key" to achieving success".
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "will be key" functions as a modal verb phrase used to emphasize the importance or necessity of a particular action, factor, or element for achieving a desired outcome. This is reflected in Ludwig AI's analysis and the provided examples.
Frequent in
News & Media
66%
Science
18%
Formal & Business
16%
Less common in
Wiki
3%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "will be key" is a common and grammatically correct expression used to emphasize the importance of something in achieving a future outcome. As Ludwig AI confirms, this phrase is widely used across various contexts, including news, business, and science. When using ""will be key"", ensure clarity by specifying what 'it' refers to and avoid overuse in passive constructions. Alternatives such as "will be essential" or "will be crucial" can be used for variety, depending on the specific nuance you wish to convey. This simple phrase carries significant weight in highlighting critical success factors.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
will be essential
Replaces "key" with "essential", emphasizing the necessity of something.
will be crucial
Substitutes "key" with "crucial", highlighting the critical importance of something.
will be vital
Replaces "key" with "vital", stressing the indispensability of something.
will be paramount
Substitutes "key" with "paramount", indicating something of utmost importance.
will be significant
Replaces "key" with "significant", denoting the importance or impact of something.
will prove decisive
Indicates that something will have a determining effect on the outcome.
will hold the key
This variation directly suggests that something has the power to unlock a solution or outcome.
will play a crucial role
Emphasizes the active part something will have in achieving a particular outcome.
will be a game-changer
Suggests that something has the potential to drastically alter the course of events.
will make all the difference
Highlights the impact something will have, suggesting it will be the deciding factor.
FAQs
How can I use "will be key" in a sentence?
Use "will be key" to emphasize the critical importance of something for a future outcome. For example, "Effective communication "will be key" to the project's success".
What are some alternatives to "will be key"?
You can use alternatives like "will be essential", "will be crucial", or "will be vital" depending on the context.
Is "will be key" too informal for professional writing?
No, "will be key" is suitable for professional writing. While it's direct, it is commonly used in news, business, and academic contexts to highlight important factors. However, for very formal contexts, consider using "will be paramount".
What does it mean when something "will be key"?
When something ""will be key"", it means that it is considered extremely important and necessary for achieving a particular outcome or goal. Without it, success is unlikely.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested