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
CEO of Professional Science Editing for Scientists @ prosciediting.com
are critically required
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "are critically required" is correct and usable in written English.
It can be used to emphasize the necessity or importance of something in a particular context. Example: "In order to ensure the success of the project, certain resources are critically required."
✓ Grammatically correct
Science
News & Media
Alternative expressions(17)
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
19 human-written examples
For that use, tracer particles tagging along the flow streams are critically required.
Science
To achieve high spatial resolutions in the nanometer range, bright and photostable fluorescent probes are critically required.
Science
Due to the growing interest in chemically modified graphene new, reliable and non-destructive methods for its characterization are critically required.
Science
While these mechanisms are critically required to help cells survive under dynamic physiological circumstances, they also pose an impediment to the effective treatment of cancer.
Cardiac neural crest cells are critically required for OFT septation and normal SHF deployment [6].
Science
Targeted ablation of the different subsets reveals that the very first dbx1-expressing progenitors are critically required for the survival of anterior neural tissues, the production and/or migration of cephalic neural crest cells and, ultimately, forebrain formation.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
40 human-written examples
"When you look at what would be critically required to clone a human being, surrogates and a large number of eggs are key ingredients, and the Ralians have those," said Gregory Stock, the director of the Program on Medicine, Technology and Society at U.C.L.A.'s School of Medicine.
News & Media
It is critically required to develop a solution to recycle and reuse these potential resources.
Through a battery of analyses, we found that DMP1 glycosylation was critically required for astrocyte maturation both in vitro and in vivo.
Science
On the other hand, this ant colony-based model could automatically determine the number of clusters that was critically required to be input in other clustering algorithms such as k-means, fuzzy c-means, and e-m clustering.
The transcription factor SCL is critically required for establishing hematopoiesis and for proper endothelial development, but not for maintenance of hematopoietic stem cells or endothelial cells in the adult.
Science
Expert writing Tips
Best practice
When using "are critically required", ensure that the context clearly indicates why the subject is essential. Providing specific reasons strengthens the statement and avoids ambiguity.
Common error
Avoid using "are critically required" in casual or informal writing. Opt for simpler alternatives like "are needed" or "are important" to maintain an appropriate tone.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are critically required" functions as a predicative adjective phrase, modifying a noun or noun phrase to indicate that they are essential or indispensable. It emphasizes the necessity of something, highlighting its crucial role in achieving a specific outcome. Ludwig examples confirm its use in scientific and formal contexts.
Frequent in
Science
80%
News & Media
10%
Formal & Business
5%
Less common in
Encyclopedias
1%
Wiki
1%
Reference
1%
Ludwig's WRAP-UP
The phrase "are critically required" is a formal expression used to emphasize the indispensable nature of certain elements or conditions. According to Ludwig, it is grammatically correct and most frequently found in scientific and academic writing. While alternatives like "are essential" or "are vital" exist, "are critically required" carries a stronger sense of urgency and necessity. When using this phrase, ensure the context clearly explains why the subject is essential. Overuse in informal settings should be avoided. It is useful to remember that something is only critically required when its absence would lead to failure or a significant negative outcome.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
are absolutely essential
Replaces "critically required" with "absolutely essential", strengthening the emphasis on necessity.
are strictly necessary
Substitutes "critically required" with "strictly necessary", conveying a sense of mandatory need.
are vitally important
Changes "critically required" to "vitally important", highlighting the significance of the requirement.
are urgently needed
Replaces "critically required" with "urgently needed", focusing on the time-sensitive aspect of the need.
are indispensable
Uses "indispensable" instead of "critically required", emphasizing that something is irreplaceable.
are paramount
Substitutes "critically required" with "paramount", highlighting that something is of utmost importance.
are of the essence
Expresses necessity by stating that something "are of the essence", implying it's crucial.
are key
Replaces "critically required" with "are key", emphasizing the central importance of something.
are a must
Uses the colloquial "are a must" to indicate something is essential and cannot be avoided.
are fundamental
Replaces "critically required" with "are fundamental", emphasizing that something forms a necessary base or core.
FAQs
How can I use "are critically required" in a sentence?
Use "are critically required" to emphasize that certain elements or conditions are essential for a particular outcome. For example, "Bright and photostable fluorescent probes "are critically required" to achieve high spatial resolutions".
What can I say instead of "are critically required"?
You can use alternatives like "are essential", "are necessary", or "are vital" depending on the context.
Is "are critically required" formal or informal?
"Are critically required" is generally considered formal and is suitable for academic, scientific, or professional writing. In more informal settings, simpler phrases might be more appropriate.
What's the difference between "are critically required" and "are important"?
"Are critically required" emphasizes a higher degree of necessity than "are important". While something that is important is valuable, something that "are critically required" is indispensable for a specific purpose.
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.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested