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 always valid
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "are always valid" is correct and usable in written English.
You can use it to indicate that something is consistently true or applicable in all situations. Example: "In mathematics, certain principles are always valid, regardless of the context in which they are applied."
✓ Grammatically correct
Science
News & Media
Academia
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
21 human-written examples
And these are always valid.
The colonel's excuses are always valid jokes that hide the passion of a belief.
News & Media
"Our constituents' feelings are always valid, but never more than in the run-up to the general election.
News & Media
Thus, \ ANA\) and \ NAA\) syllogisms are always valid.
Science
Further, we also prove that quadratic Lyapunov functions are always valid for our model.
For Vasubandhu, while scriptures are always valid sources of knowledge, to excavate their meaning often requires in-depth, sophisticated, philosophical reasoning.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
39 human-written examples
The milling tests with different combinations of cutting parameters show that multi-TVD approach is always valid regardless of the parameters being used.
Moreover, it was shown that Trouton's rule is always valid if sorption equilibrium obeys the Polanyi potential theory, i.e., the equilibrium sorption is a unique function of the sorption potential ΔF= -RTln(P/P0).
Science
Thus, inequality (2.19) is always valid if.
Science
Since, is always valid whereas (33).
Thus, is always valid by means of biological detection.
Science
Expert writing Tips
Best practice
When using "are always valid", ensure the context clearly supports the idea of consistent truth or applicability without exceptions. Overuse can weaken your argument if exceptions exist.
Common error
Avoid using "are always valid" when the statement is only generally true or has exceptions. Qualify your statement with phrases like "are often valid" or "are generally valid" to maintain accuracy.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are always valid" functions as a predicate adjective, describing a subject as consistently true or applicable. Ludwig AI provides examples from diverse fields where principles or feelings possess invariable validity.
Frequent in
Science
45%
News & Media
30%
Academia
25%
Less common in
Formal & Business
0%
Wiki
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "are always valid" is a versatile expression used to assert the consistent truth or applicability of a concept. Ludwig AI confirms its grammatical correctness and provides examples from science, news, and academic domains. When using "are always valid", ensure that the statement truly holds without exceptions to maintain clarity and credibility. If qualifications are needed, consider using terms like "often" or "generally" instead.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
are invariably true
Replaces "valid" with "true" and "always" with "invariably" for emphasis.
are consistently legitimate
Substitutes "always" with "consistently" and "valid" with "legitimate" emphasizing lawfulness.
are perpetually correct
Uses "perpetually" instead of "always" and replaces "valid" with "correct".
are invariably applicable
Replaces "valid" with "applicable" emphasizing that they can be applied in every instance.
are unfailingly accurate
Substitutes "always" with "unfailingly" and "valid" with "accurate", highlighting precision.
are constantly sound
Replaces "always" with "constantly" and "valid" with "sound" emphasizing reasonability.
hold true universally
Replaces the entire structure with a more concise phrase that conveys the same meaning.
remain valid indefinitely
Replaces "always" with "indefinitely" implying their validity will persist.
are eternally legitimate
Substitutes "always" with "eternally" and "valid" with "legitimate" suggesting lawfulness for ever.
are permanently sound
Replaces "always" with "permanently" and "valid" with "sound" emphasizing reasonability for ever.
FAQs
What does "are always valid" mean?
The phrase "are always valid" means something is true or applicable in every situation without exception. It indicates a consistent state of correctness or legitimacy.
When is it appropriate to use "are always valid"?
Use "are always valid" when you want to emphasize that something consistently holds true across all scenarios, as opposed to being sometimes true or conditionally valid.
What are some alternatives to "are always valid"?
You can use alternatives like "are invariably true", "are consistently legitimate", or "hold true universally" depending on the specific nuance you want to convey.
How does "are always valid" differ from "are usually valid"?
"Are always valid" indicates universal truth, whereas "are usually valid" suggests that something is typically true but may have exceptions. The former is absolute, the latter is conditional.
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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested