is sometimes observed

USAGE SUMMARY

The phrase "is sometimes observed" is correct and usable in written English.
It can be used when discussing occurrences or phenomena that are not consistent but happen occasionally. Example: "In certain species, a change in behavior is sometimes observed during mating season."

✓ Grammatically correct

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Crystal twisting during Czochralski growth of silicon crystals is sometimes observed at increased pulling rates.

Journal of Crystal Growth

This is sometimes observed to have the same effect as artificial pruning.

The Economist

In addition to cyst formation, interstitial collagen deposition or scarring is sometimes observed in both kidney and liver.

New Horizons in Translational Medicine

The prognosis remains uncertain and a metastatic spread is sometimes observed long time after the initial diagnosis.

Pathologie Tumorale Rénale Diagnostic et pronostic anatomopathologique et moléculaire des tumeurs rénales

A perched groundwater is sometimes observed in the superficial layers in which evapotranspiration processes seem to occur.

Journal of Hydrology

The mental retardation that is sometimes observed in galactosemic children may be caused by the high galactose level, the low glucose level, or both.

Britannica

Posttraumatic amnesia is sometimes observed after mild head injury without loss of consciousness and with no apparent change in ordinary behaviour.

Britannica

The model also explains the transient voltage rise (over the steady state open circuit voltage) that is sometimes observed experimentally shortly after the fuel cell start-up.

Journal of Power Sources

Parallel retreat of slopes, defined as recession of slopes without changes in their topography, is sometimes observed on slopes composed of multiple strata.

Geomorphology

It is sometimes observed that poor surface finish can occur at the beginning and the end of sliced round wafers when contact spans are short.

Journal of Sound and Vibration

A set of concentric coloured rings, known as an atmospheric corona, often overlapping to produce a single diffuse whitish ring, is sometimes observed around the Moon.

Encyclopedia Britannica

Expert writing Tips

Best practice

When using the phrase "is sometimes observed", ensure that the context clearly indicates the conditions or situations under which the observation occurs. This provides clarity and avoids ambiguity.

Common error

Avoid using "is sometimes observed" when the phenomenon is actually quite rare. Ensure the frequency aligns with the appropriate quantifier, such as "rarely" or "occasionally", if necessary.

Linguistic Context

The phrase "is sometimes observed" functions as a passive construction indicating that a particular phenomenon or event is noticed or detected on occasion. Ludwig AI shows it's common across various domains, showing its wide applicability.

Expression frequency: Very common

Frequent in

Science

79%

News & Media

12%

Encyclopedias

5%

Less common in

Formal & Business

2%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

The phrase "is sometimes observed" is a versatile construction used to denote that something is occasionally noticed or detected, without implying consistency. Ludwig AI analysis reveals it to be grammatically sound and prevalent across scientific, news, and encyclopedic contexts. While authoritative, careful consideration should be given to the specific frequency of the event being described to avoid overgeneralization. Alternatives like "is occasionally noticed" or "is infrequently seen" can be used to fine-tune the level of emphasis. The phrase serves a crucial role in descriptive and reporting contexts where accuracy and nuance are paramount.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

is occasionally noticed

Replaces "sometimes" with "occasionally", suggesting a slightly lower frequency of occurrence.

is infrequently seen

Substitutes "observed" with "seen" and "sometimes" with "infrequently", implying a less common visual occurrence.

is rarely detected

Changes "sometimes" to "rarely" and "observed" to "detected", indicating an infrequent discovery or finding.

is not always apparent

Uses a negative construction to convey that something is not consistently visible or obvious.

is intermittently present

Indicates that something is present at irregular intervals or not continuously.

is sporadically encountered

Replaces "sometimes" with "sporadically", suggesting irregular and scattered occurrences.

can be seen from time to time

Indicates observation that is not constant.

is now and then perceived

Uses a more colloquial expression to indicate occasional perception.

is subject to occasional observation

This alternative is more formal, rephrasing to emphasize the possibility of being observed.

crops up every so often

Employs an idiomatic expression to describe something that appears or happens occasionally.

FAQs

How can I use "is sometimes observed" in a sentence?

This phrase is used to indicate that a phenomenon or occurrence happens occasionally but not consistently. For example, "A change in behavior "is sometimes observed" during mating season."

What are some alternatives to "is sometimes observed"?

You can use alternatives like "is occasionally noticed", "is infrequently seen", or "is rarely detected" depending on the context and desired level of formality.

Is "is sometimes observed" formal or informal?

The phrase "is sometimes observed" is generally considered neutral to formal in tone and suitable for academic, scientific, or professional writing.

What's the difference between "is sometimes observed" and "is always observed"?

"Is sometimes observed" indicates that something happens occasionally, while "is always observed" indicates that something happens consistently in every instance.