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
it is compulsory that
Grammar usage guide and real-world examplesUSAGE SUMMARY
'it is compulsory that' is a grammatically correct and completely usable expression in written English.
This expression is used to emphasize that something is required or necessary. For example, "It is compulsory that all employees attend the company's monthly meeting."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(20)
it is mandatory that
it is required that
it is obligatory that
it is essential that
it is imperative that
it is crucial that
it is vital that
it is a necessity that
it is a must that
it is unavoidable that
it is optional that
it is indispensable that
it is requisite that
it is free that
it is statutory that
it is necessary that
it is voluntary that
it is compelling that
it is duty that
it is prescribed that
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
6 human-written examples
In order to be passed, it is compulsory that the three member states with the highest number of European patent validations ratify the agreement.
News & Media
Since the brightness of a fluorescent dye is proportional to the product of ε and φ, it is compulsory that these should be accurately recorded and reported for each novel dye.
Holy war to the death is the only solution: "In face of the Jews' usurpation of Palestine, it is compulsory that the banner of Jihad be raised".
News & Media
It is compulsory that domestic football/soccer teams in UEFA competitions organise players' pre-participation medicals.
In order to activate downstream signalling cascades, it is compulsory that cooperation between these two receptors occurs resulting into an active heterodimer [ 8].
The indoor cricket court is divided into the front court and the backcourt and it is compulsory that 4 players of the fielding team are present in each half of the court when the ball is bowled.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
54 human-written examples
Before any work is started, it's compulsory that an ecological survey is carried out to check for protected species inhabiting the site.
News & Media
Since shadowing practice and other listening-related tasks were part of the unit assessment, it was compulsory that students complete those tasks as unit requirements.
It is compulsory at this point to note that processor speed is simply one measure of a computer's performance, and an often unreliable one at that.
News & Media
In a meeting on Sept. 16, 2001, at the home of another defendant in the Virginia case, Mr. Timimi reportedly told other followers that "it was compulsory to assist Afghanistan in jihad against the expected U.S. military invasion," the indictment says.
News & Media
In the measurement phase of the infectivity assay it is compulsory to understand that each mouse or cell well may have a different response to infection.
Expert writing Tips
Best practice
When using "it is compulsory that", ensure the context clearly establishes who or what is imposing the compulsion. For instance, specify whether it is a legal requirement, an organizational policy, or a generally accepted standard.
Common error
Avoid using "it is compulsory that" in casual conversation or informal writing. Opt for simpler phrases like "you have to" or "it's necessary" to maintain a natural tone.
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it is compulsory that" functions as a clause introducer, indicating a mandatory requirement or obligation. This usage is supported by Ludwig AI, confirming its grammatical correctness and usability in written English.
Frequent in
News & Media
33%
Science
50%
Wiki
17%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "it is compulsory that" serves to introduce a requirement or obligation, indicating that something is not optional. Ludwig AI confirms its grammatical correctness and usability. While the phrase sees usage across various domains, including news, science and wiki articles, it is important to consider the formality of the context. For more casual settings, alternatives like "it is mandatory that" or "it is required that", or even simpler phrases, might be more appropriate. Therefore, while a grammatically sound and useful phrase, mindful application will ensure effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
it is mandatory that
Replaces "compulsory" with "mandatory", implying a formal requirement.
it is required that
Uses "required" to indicate a necessity, often set by a rule or law.
it is obligatory that
Substitutes "compulsory" with "obligatory", suggesting a moral or legal duty.
it is essential that
Highlights the necessity of something for a specific outcome or purpose.
it is imperative that
Emphasizes the critical importance of something using "imperative".
it is crucial that
Emphasizes the significance of something to avoid negative consequences.
it is vital that
Indicates extreme importance, often related to survival or critical success.
it is a necessity that
Directly states that something is indispensable or unavoidable.
it is a must that
Uses a more informal tone to indicate something indispensable.
it is unavoidable that
Indicates something cannot be prevented or escaped.
FAQs
What does "it is compulsory that" mean?
The phrase "it is compulsory that" signifies that something is required or obligatory, usually by a rule, law, or regulation. It indicates a lack of choice in the matter.
How can I use "it is compulsory that" in a sentence?
You can use "it is compulsory that" to emphasize the necessity of an action or condition. For example, "It is compulsory that all participants sign the waiver before the event."
What are some alternatives to "it is compulsory that"?
Alternatives include "it is mandatory that", "it is required that", or "it is obligatory that", which all convey a similar sense of obligation.
Is there a difference between "it is compulsory that" and "it is necessary that"?
While both phrases indicate a requirement, "it is compulsory that" often implies a formal rule or external imposition, whereas "it is necessary that" can suggest a requirement based on logic or inherent need. They are similar, but "compulsory" often implies a mandate from an external authority.
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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
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested