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
if failed
Grammar usage guide and real-world examplesUSAGE SUMMARY
"if failed" is correct and usable in written English.
You can use it to indicate a condition that must be satisfied in order for something to happen. For example, "If failed, the student will not receive a passing grade."
✓ Grammatically correct
Science
News & Media
Wiki
Alternative expressions(3)
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
34 human-written examples
Double IF failed to show co-localization of the SG components G3BP136 and TIAR37 with pTDP-43-positive NCIs in injected CamKIIa-hTDP-43NLSm mice (Supplementary Fig. 13).
Science & Research
// Returns 1 if successful, 0 if failed.
Academia
AND I wonder if failed space isn't more conducive to creativity.
News & Media
Case study: what next if failed to get the grades I needed for university?
News & Media
Bart unsuccessfully attempts to revise for a test that, if failed, will put him back a year.
News & Media
And it was secret talks in Oslo that truly began the historic, if failed, Israeli-Palestinian peace process of the 1990s.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
26 human-written examples
Naturally, if fails, horribly.
News & Media
And if they failed?
News & Media
And if you failed a test?
News & Media
What if it failed?
News & Media
If he failed, he would sell insurance.
News & Media
Expert writing Tips
Best practice
When using "if failed", ensure the context clearly indicates what is expected to happen as a result of the failure. A clear consequence improves readability.
Common error
Avoid using "if failed" when the subject performing the action is unclear. Always specify what or who failed to provide clarity and avoid ambiguity.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "if failed" functions as a conditional clause. It introduces a scenario where an action or attempt has been unsuccessful, setting the stage for an alternative action or outcome. Ludwig provides numerous examples demonstrating its effective use.
Frequent in
Science
33%
News & Media
33%
Wiki
14%
Less common in
Formal & Business
7%
Encyclopedias
5%
Academia
3%
Ludwig's WRAP-UP
In summary, "if failed" serves as a conditional clause, primarily used to specify actions or outcomes contingent on an unsuccessful attempt. As Ludwig AI confirms, it's considered grammatically correct and frequently appears across various contexts, from scientific papers to news articles and wikis. While versatile, it's especially prevalent in formal and technical writing where conciseness is valued. When using this phrase, ensure the context clearly defines the actor and expected consequences to prevent ambiguity. Consider related phrases like "in the event of failure" or "should it fail" for alternative phrasing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
if it is unsuccessful
It replaces "failed" with a more descriptive adjective, maintaining a similar level of formality.
in the event of failure
This alternative uses a more formal and explicit structure, emphasizing the possibility of failure.
should it fail
This option provides a more formal and hypothetical tone, suitable for academic or technical contexts.
if it does not succeed
Offers a more direct and less nuanced take on the original phrase.
in case of failing
This alternative emphasizes the process of failing rather than the completed state.
supposing it fails
Expresses a hypothetical situation where failure occurs.
on the condition of failing
It adds formality by explicitly stating a conditional requirement.
assuming it fails
This alternative sets a tone of anticipation of failure as a likely event.
if it should happen to fail
It introduces a sense of chance or unexpectedness.
were it to fail
A more literary and hypothetical phrasing, emphasizing the hypothetical nature of the failure.
FAQs
How can I use "if failed" in a sentence?
Use "if failed" to introduce a condition where something is unsuccessful, such as, "If failed, the system will revert to its original state".
What are some alternatives to saying "if failed"?
You can use alternatives such as "in the event of failure", "should it fail", or "if it is unsuccessful" to express similar conditional outcomes.
Is "if failed" grammatically correct?
Yes, "if failed" is grammatically acceptable. It is commonly used to express a condition related to an unsuccessful outcome.
What's the difference between "if failed" and "if it fails"?
"If failed" is a more concise form often used in technical or procedural contexts, while "if it fails" is a more explicit and generally applicable construction. The choice depends on the desired level of formality and clarity.
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
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested