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
rules states that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "rules states that" is not correct in English.
It should be "rules state that" since "rules" is plural. You can use it when referring to specific regulations or guidelines that are established by a set of rules. Example: "The rules state that all participants must arrive on time to the event."
⚠ May contain grammatical issues
Alternative expressions(1)
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
8 human-written examples
Under the contest rules, states that adopted high standards stood the best chance of winning.
News & Media
The N.C.A.A. said that it found no evidence that he had taken any money, but it imposed the penalty because one of its rules states that players can't sign autographs for people who are going to try to make money from their signature, even if they reap no reward themselves.
News & Media
The Nobel Committee rules states that members of national assemblies and governments are able to make nominations for the prize.
News & Media
Nobel committee rules states that members of national assemblies and governments are able to make nominations for the prize.
News & Media
An I.R.S. briefing paper on the new rules states that in 1999 the Treasury lost $8.5 billion to $9.9 billion by paying earned-income tax credits to filers who should not have received them.
News & Media
One exception in the military rules states that confidentiality can be breached without a patient's consent when "federal law, state law or service regulation imposes a duty to report information".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
Although both dates place James within the age limit for the competition, the rules state that both dates must match.
News & Media
The mirror rule states that when we observe a behaviour, we tend to mimic it.
News & Media
His rule states that, in any field, 80% of the effect can be achieved with 20% of the effort.
News & Media
The decision rule states that, (22).
The only consistent rule states that Calvinball may never be played with the same rules twice.
Wiki
Expert writing Tips
Best practice
Always ensure subject-verb agreement. Since "rules" is plural, use "rules state that" instead of the incorrect "rules states that".
Common error
A common mistake is using a singular verb form with a plural subject. Double-check that plural nouns like "rules", "guidelines", or "regulations" are paired with the plural verb form "state" to maintain grammatical accuracy.
Source & Trust
60%
Authority and reliability
1.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "rules states that" is intended to function as a statement of a regulation or guideline. However, the construction is grammatically incorrect, as Ludwig AI explains, because the plural subject "rules" requires the plural verb form "state".
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
The phrase "rules states that" is a grammatically incorrect construction. As Ludwig AI emphasizes, the plural subject "rules" requires the plural verb "state". Therefore, the correct phrasing is ""rules state that"". This grammatical error can undermine the credibility of your writing, especially in professional or academic contexts. Alternatives include "rules stipulate that", "rules provide that", or "the regulation states that", but ensuring subject-verb agreement is key for clear and effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
rules stipulate that
Replaces "states" with "stipulate", offering a more formal tone but conveying the same meaning regarding what rules dictate.
rules provide that
Uses "provide" instead of "state", suggesting that the rules offer a specific provision or allowance.
rules dictate that
Employs "dictate" to emphasize the authoritative nature of the rules and their binding power.
rules require that
Substitutes "state" with "require", focusing on the mandatory aspect of the rules.
rules specify that
Replaces "state" with "specify", highlighting that the rules are detailed and precise about what is expected.
rules outline that
Uses "outline" to suggest that the rules provide a general overview or framework.
rules establish that
Replaces "state" with "establish", indicating that the rules set a precedent or foundation.
rules determine that
Employs "determine" to show that the rules lead to a particular outcome or decision.
the rule is that
Simplifies the structure to focus on a single rule, changing the verb and emphasizing the generality of the rule.
the regulation states that
Replaces "rules" with "regulation" to narrow the focus to a specific type of rule, but still maintains the core meaning.
FAQs
What is the correct way to say what rules specify?
The correct phrasing is "rules state that", as "rules" is plural and requires the plural verb form "state". For example, "The "rules state that" all participants must register before the event".
What can I say instead of "rules states that"?
Alternatives include "rules stipulate that", "rules provide that", or "the regulation states that", depending on the context. Remember that “"rules state that"” is the grammatically correct option.
Is "rules states that" grammatically correct?
No, "rules states that" is grammatically incorrect. The correct form is ""rules state that"". The subject "rules" is plural, so it requires the plural verb form "state".
Which is correct: "rules states that" or "rules state that"?
The correct phrase is ""rules state that"". Using "states" with the plural subject "rules" is a common error in subject-verb agreement.
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
60%
Authority and reliability
1.5/5
Expert rating
Real-world application tested