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
is a prerequisite
Grammar usage guide and real-world examplesUSAGE SUMMARY
'is a prerequisite' is correct and can be used in written English.
You can use it when you want to say that something must be done or learned before something else can take place. For example: "Learning basic computer skills is a prerequisite for taking this class."
✓ Grammatically correct
Academia
News & Media
Science
Alternative expressions(20)
is a necessity
is essential for
is a requirement
is recommended
is an imperative
is indispensable
is key to
absolutely must have
is required
cannot do without
needs to have
it is vital to have
is a required step
is an essential element
is a must
is unavoidable
must required is
has to be a given
is a given
is taken for granted
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
There is a prerequisite.
News & Media
This is a prerequisite for its success.
News & Media
Sometimes such wherewithal is a prerequisite.
News & Media
Respect is a prerequisite for understanding.
News & Media
That is a prerequisite for prosperity".
Encyclopedias
Now it is a prerequisite.
News & Media
Passion is a prerequisite.
Academia
But independence is a prerequisite for freedom.
News & Media
A bulging Rolodex is a prerequisite.
News & Media
Therefore a court application is a prerequisite.
News & Media
Integration is a prerequisite for independence.
News & Media
Expert writing Tips
Best practice
When using "is a prerequisite", ensure that the connection between the prerequisite and the outcome is clear to the reader. Explain why the prerequisite is necessary for the specific result.
Common error
Avoid using "is a prerequisite" when describing something merely helpful but not strictly necessary. Overstating the importance can weaken your argument and mislead your audience.
Source & Trust
84%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is a prerequisite" functions as a predicate nominative, linking the subject to a noun phrase that renames or defines it. It specifies a condition or requirement that must be met before something else can occur. Ludwig AI confirms that it is grammatically correct.
Frequent in
News & Media
39%
Academia
18%
Science
15%
Less common in
Formal & Business
5%
Encyclopedias
3%
Reference
0%
Ludwig's WRAP-UP
In summary, "is a prerequisite" is a grammatically sound and frequently used phrase that indicates a necessary condition or requirement for something else to occur. Ludwig AI confirms its correctness and versatility. It is commonly found in news, academic, and scientific contexts, reflecting its formal tone and function in establishing dependencies. When using "is a prerequisite", make sure to explain why the prerequisite is necessary and avoid overstating its importance. Alternatives like "is a necessity" or "is essential for" can be used depending on the context.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is a necessity
Emphasizes essential nature, suggesting something cannot be done without it.
is a fundamental condition
Highlights the foundational aspect of the requirement.
is an essential requirement
Reinforces the critical nature of the need.
is a mandatory condition
Suggests the requirement is obligatory and enforced.
is a prior condition
Highlights the temporal order, emphasizing that it must come before.
is a preliminary step
Focuses on the role as an initial action needed for progression.
is an imperative
Emphasizes the critical and unavoidable nature of the requirement.
is indispensable
Highlights that something is absolutely necessary or essential.
is key to
Highlights the importance for achieving a specific outcome.
is essential for
Indicates necessity but is slightly less formal.
FAQs
How can I use "is a prerequisite" in a sentence?
Use "is a prerequisite" to indicate a necessary condition for something else to occur. For example, "A strong foundation in mathematics "is a prerequisite" for advanced engineering studies."
What are some alternatives to saying "is a prerequisite"?
You can use phrases such as "is a necessity", "is essential for", or "is a fundamental condition" depending on the specific context and nuance you want to convey.
Which is correct, "is a prerequisite" or "is a requirement"?
Both "is a prerequisite" and "is a requirement" are correct, but they emphasize slightly different aspects. "Is a prerequisite" highlights the temporal order (it must come before), while "is a requirement" simply states that it is necessary.
What's the difference between "is a prerequisite" and "is recommended"?
"Is a prerequisite" means something is strictly necessary, while "is recommended" suggests something is beneficial but not essential. A prerequisite must be fulfilled, while a recommendation is optional.
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
84%
Authority and reliability
4.6/5
Expert rating
Real-world application tested