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
constructed and maintained
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "constructed and maintained" is correct and usable in written English.
It can be used when discussing the creation and ongoing upkeep of a structure, system, or process. Example: "The bridge was constructed and maintained by a team of skilled engineers over several years."
✓ Grammatically correct
Science
News & Media
Encyclopedias
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
57 human-written examples
For example, women constructed and maintained wells better, and took fewer bribes.
News & Media
Septic systems provide effective treatment if properly sited, constructed and maintained.
News & Media
But for a period, between roughly 1994 and 2001, a genuine centrist coalition was constructed and maintained.
News & Media
These mimicked monuments are constructed and maintained by a migrant labour force, one that is simultaneously indispensible and disposable.
News & Media
"No one should be asked to exhibit or perform in a building that has been constructed and maintained on the backs of exploited employees," they wrote.
News & Media
He is on a crusade to debunk what he calls "Freudolatry," the cult of Freud constructed and maintained by the "home-team historians".
News & Media
A shopping centre is a collection of independent retail stores, services, and a parking area conceived, constructed, and maintained by a management firm as a unit.
Encyclopedias
The provisions of the convention aim to ensure that vessels are constructed and maintained so that workers have decent living conditions on board, suitable for the long periods they often spend at sea.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
3 human-written examples
The NHRI, which constructed and maintains the LHID2005 database, further scrambles this encrypted information before the database is released to researchers.
Science
Ten independent transgenic tobacco lines were generated with the Js1304 construct and maintained in the green house until seeds were mature.
Science
Many of those jobs would be in the construction sector, with an estimated 650,000 jobs created in constructing and maintaining schools, according to Schakowsky's office.
News & Media
Expert writing Tips
Best practice
When describing systems or infrastructure, use "constructed and maintained" to emphasize both the initial creation and the ongoing effort to keep it in good working order. This highlights the complete lifecycle of the subject.
Common error
Avoid focusing solely on the initial construction phase and neglecting to mention the importance of consistent maintenance. Using "constructed and maintained" clarifies that both aspects are crucial for long-term success and functionality.
Source & Trust
84%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "constructed and maintained" functions as a compound verb phrase, where "constructed" indicates the initial creation or building of something, and "maintained" signifies the ongoing effort to keep it in good condition. Ludwig highlights the versatility of this phrase across various contexts.
Frequent in
Science
45%
News & Media
25%
Encyclopedias
10%
Less common in
Formal & Business
7%
Wiki
7%
Social Media
0%
Ludwig's WRAP-UP
The phrase "constructed and maintained" is a common and grammatically correct way to describe something that has been both built and kept in good condition. As highlighted by Ludwig, the phrase sees frequent use in scientific, news, and encyclopedic contexts. While several alternatives like "built and preserved" or "developed and supported" exist, the original phrase effectively conveys the combined sense of creation and ongoing care. Remember to use "constructed and maintained" to highlight the complete lifecycle of a subject, emphasizing both its initial establishment and its continued upkeep.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
built and preserved
Replaces "constructed" with "built" and "maintained" with "preserved", offering a slightly more evocative tone.
created and upheld
Substitutes "constructed" with "created" and "maintained" with "upheld", implying a sense of active support and preservation.
established and sustained
Replaces "constructed" with "established" and "maintained" with "sustained", suggesting a focus on long-term viability and support.
developed and supported
Substitutes "constructed" with "developed" and "maintained" with "supported", emphasizing ongoing assistance and enhancement.
assembled and cared for
Replaces "constructed" with "assembled" and "maintained" with "cared for", offering a more personal and attentive tone.
fabricated and serviced
Substitutes "constructed" with "fabricated" and "maintained" with "serviced", focusing on manufacture and routine maintenance.
erected and conserved
Replaces "constructed" with "erected" and "maintained" with "conserved", implying a sense of formal creation and careful preservation.
fashioned and guarded
Substitutes "constructed" with "fashioned" and "maintained" with "guarded", emphasizing artistry and protection.
formulated and administered
Replaces "constructed" with "formulated" and "maintained" with "administered", suggesting a focus on planning and management.
engineered and operated
Substitutes "constructed" with "engineered" and "maintained" with "operated", highlighting technical design and functional usage.
FAQs
What does "constructed and maintained" mean?
The phrase "constructed and maintained" means that something has been both built or created and is currently being kept in good condition through regular upkeep and repairs.
How can I use "constructed and maintained" in a sentence?
You can use "constructed and maintained" to describe anything from a building to a database. For example: "The bridge was carefully "constructed and maintained" to ensure its longevity."
What are some alternatives to "constructed and maintained"?
Some alternatives include "built and preserved", "created and upheld", or "developed and supported", depending on the specific nuance you want to convey.
Is it redundant to say something is both "constructed" and "maintained"?
No, it isn't redundant. "Constructed" refers to the initial creation, while "maintained" emphasizes the ongoing effort to keep it functional and in good condition. The combination highlights the full lifecycle of the entity.
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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
84%
Authority and reliability
4.6/5
Expert rating
Real-world application tested