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
have infirm
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "have infirm" is not correct or commonly used in written English.
It is unclear what you are trying to express with this phrase. If you are trying to say that someone has a physical or mental disability, a more commonly used phrase would be "has an infirmity" or "is infirm." Example: "My grandmother has an infirmity that makes it difficult for her to walk."
⚠ May contain grammatical issues
News & Media
Science
Wiki
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
1 human-written examples
If Davis had run the whole shop back then, we wouldn't have infirm ex-N.F.L.ers having to beg for help today.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Matisse had been infirm since undergoing abdominal surgery in 1941, and he spent most of his days in bed or in a wheelchair.
News & Media
His lawyer says a recent hip replacement and several subsequent surgeries have left him infirm.
News & Media
The elderly and the infirm have trouble negotiating crowded sidewalks, and even ministers have to head down to 96th Street to get to their churches across town.
News & Media
Acton, which is modeling its program on one in nearby Concord, plans to take a complete inventory of each household, keeping track of which families have old or infirm people who would be particularly vulnerable, which families have generators and which have special medical or emergency skills.
News & Media
Insertions could alternatively occur at random, with subsequent elimination of inserts located in an environment not suitable for proper splicing, or adaptation of the surrounding sequences to improve splicing efficiency; this hypothesis has been infirmed by [52].
Science
Nearly all have been aged or infirm parents, who wished to be reunited with their children in West Germany.
News & Media
The IOC's hasty and ill-considered directives are legally infirm and have already resulted in an uneven and incomplete response from IFs.
News & Media
It seems as though they are thinning the herd of the weak and infirm to have the best shot at survival.
News & Media
Instead, they argue, the IOC "issued a confusing patchwork of conflicting and insufficient instructions to international sport federations" that are "legally infirm" and have already resulted in an "uneven and incomplete response from IFs".
News & Media
He told the paper that he asked the state to investigate whether Lee was too infirm to have fully consented to the publication plans of Go Set a Watchman.
News & Media
Expert writing Tips
Best practice
Instead of using "have infirm", consider using "is infirm" or "has an infirmity" to correctly convey the meaning of someone suffering from a physical or mental weakness.
Common error
Avoid using "have" directly with "infirm" as it's not grammatically correct. Instead, use a linking verb like "is" or "becomes", or rephrase to "has an infirmity".
Source & Trust
84%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "have infirm" is grammatically incorrect and rarely used. Standard English prefers constructions like "is infirm" or "has an infirmity". As Ludwig AI points out, the usage is unclear and does not conform to conventional grammatical patterns.
Frequent in
News & Media
33%
Science
33%
Formal & Business
0%
Less common in
Wiki
33%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "have infirm" is considered grammatically incorrect in standard English, according to Ludwig AI. It's rare and unclear, with only a single exact example found in the provided sources. To correctly express the intended meaning of someone suffering from weakness or illness, it's best to use phrases like "is infirm" or "has an infirmity". While the sources where the phrase appears are generally authoritative, the phrase itself lacks proper usage and consistency, making it unsuitable for formal writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
suffer from infirmity
Replaces "have" with "suffer from", focusing on the experience of the infirmity.
be in poor health
Uses a more general term for ill health rather than a specific condition.
be of unsound health
More formal and emphasizes the lack of good health.
be physically weak
Focuses on the physical aspect of being infirm.
be frail
Implies a delicate or weakened state.
experience declining health
Focuses on the process of health deterioration.
be in a debilitated condition
Highlights the weakening effect of a health problem.
labor under an infirmity
Focuses on the burden or struggle caused by the infirmity.
bear an infirmity
Implies enduring or living with the infirmity.
be unwell
A general term indicating sickness or poor health.
FAQs
What's the correct way to use "infirm" in a sentence?
What does it mean when someone is described as "infirm"?
When someone is described as "infirm", it means they are weak, feeble, or in poor health, often due to old age or illness.
What are some alternatives to saying someone "has infirm"?
Instead of "have infirm", you can say someone "is frail", "is weak", or "has an infirmity".
Is it ever correct to say "have infirm"?
No, the phrase "have infirm" is not grammatically correct in standard English. It's better to use phrases like ""is infirm"" or "has an infirmity".
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
1.8/5
Expert rating
Real-world application tested