been maintained for over

USAGE SUMMARY

The phrase "been maintained for over" is correct and usable in written English.
It can be used when discussing the duration of maintenance or upkeep of something, typically referring to a period of time. Example: "The historical building has been maintained for over a century, preserving its original architecture."

✓ Grammatically correct

Science

Academia

News & Media

Human-verified examples from authoritative sources

Exact Expressions

18 human-written examples

The study was conducted at the Jasper Ridge Global Change Experiment (JRGCE), California where manipulations mimicking increases in temperature, water, nitrogen and carbon-dioxide have been maintained for over 15 years.

Stanford University

Some of these experiments have been maintained for over a century, providing valuable information on long-term developments (Spellmann et al. 1996).

Forest Ecosystems

Indeed, religious rule in Iran has been maintained for over three decades, and no matter how much a Shiite Iran might oppose a Sunni Muslim Brotherhood, their greatest enemy is liberal secular government.

Huffington Post

Both colonies have been maintained for over two years on cowpea plants (Vigna unguiculata var. California blackeye).

Plosone

Lrig3flox conditional mice [27] and Pax2Cre mice [32] have been maintained for over five generations on C57Bl6/J background.

Plosone

The clonal PGK-H2BmCherry hESC lines have been maintained for over 20 passages with no discernible change in intensity level or loss of homogeneity.

Plosone

Human-verified similar examples from authoritative sources

Similar Expressions

42 human-written examples

In a pig-to-baboon tolerance model, transplanted pig skin was maintained for over 2.5 months without immunosuppressive drugs (4).

Harvard University

The obtained Grad-O CdS exhibited a large photocurrent density of 6.0 ± 0.1 mA cm−2 at 0.4 V vs. RHE, which could be maintained for over 42 h.

Nano Energy

The albumin synthesis by hepatocytes was two-fold higher in 3D gel cultures compared with 2D gel cultures, and was maintained for over 2 weeks compared with 2D film cultures using the HGF/heparin-immobilized collagen system.

Journal of Bioscience and Bioengineering

With a large Se content of 62.5 wt% and areal mass loading of 3.0 mg cm−2, the freestanding and binder-free Se@CNx cathode comprising of intertwining and interpenetrating hollow double-shell Se@CNx nanobelts could deliver a high capacity of 608.8 mAh g−1 at a density of 675 mA g−1 and the cycle stability is maintained for over 400 cycles with only 0.06% capacity decay per cycle.

Nano Energy

Lasing under constant, pulsed excitation could be maintained for over 1 h, the equivalent of 109 excitation cycles.

Nano-Micro Letters

Expert writing Tips

Best practice

When using the phrase "been maintained for over", ensure the context clearly indicates what has been maintained and the specific duration. This provides clarity and avoids ambiguity.

Common error

Avoid using "been maintained for over" without specifying what is being maintained. For instance, instead of saying "the system has been maintained for over a decade", specify "the database system has been maintained for over a decade" for better clarity.

Linguistic Context

The phrase "been maintained for over" functions as a verbal phrase in the passive perfect tense. It indicates that an action of maintaining something has been ongoing for a period exceeding a specified time. Ludwig confirms its validity in various contexts.

Expression frequency: Uncommon

Frequent in

Science

65%

Academia

20%

News & Media

15%

Less common in

Formal & Business

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

The phrase "been maintained for over" is grammatically sound and functions as a passive perfect verbal phrase, indicating continuous upkeep beyond a certain duration. Ludwig's analysis indicates that the phrase sees common use in scientific, academic, and news-related contexts, highlighting its suitability for neutral to formal communication. Related phrases can offer nuanced ways to convey similar meanings, while adhering to best practices ensures clarity and precision in writing. Remember to specify exactly what has been maintained to eliminate any ambiguity.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

has been kept for more than

Focuses on the act of keeping something in a particular state for a specified duration, instead of maintenance.

has been sustained for longer than

Emphasizes the ability of something to continue or persist over a period of time.

has been preserved for a duration exceeding

Highlights the act of protecting something from harm or decay over a specific period.

has been upheld for at least

Implies that a standard, principle or system has been defended or supported for an extended period.

has been conserved for a period beyond

Focuses on the act of avoiding wasteful use of something and keeping it safe and available.

has endured for a time surpassing

Highlights the ability of something to survive or withstand difficult conditions over an extent of time.

has lasted for an interval greater than

Simply states that something has continued to exist or function for a time longer than some limit.

has persisted for a term exceeding

Highlights continued existence or occurrence for a time longer than a specific amount.

has prolonged itself to a period longer than

Emphasizes how something has actively caused its duration to be long lasting and surpassing its initial intention.

has existed for a quantity of time passing

Simple expression about the fact that something has lasted more than an amount of time

FAQs

What does "been maintained for over" mean?

The phrase "been maintained for over" indicates that something has been kept in good condition or a specific state for a period exceeding a certain duration. It implies ongoing effort and upkeep.

What are some alternatives to "been maintained for over"?

You can use phrases like "has been kept for more than", "has been sustained for longer than", or "has been preserved for a duration exceeding" depending on the specific context.

Is it grammatically correct to say "been maintained for over"?

Yes, "been maintained for over" is grammatically correct. It follows the standard structure of a passive perfect construction, indicating that something has been kept in a particular state for a specific duration.

How can I use "been maintained for over" in a sentence?

You can use "been maintained for over" in sentences like: "The equipment has "been maintained for over" five years with regular servicing" or "This tradition has "been maintained for over" a century by the community".