fluctuate over time

USAGE SUMMARY

The phrase "fluctuate over time" is correct and usable in written English.
You can use it when discussing changes or variations in a particular situation, condition, or measurement that occur throughout a period. Example: "The stock prices tend to fluctuate over time, reflecting market trends and investor sentiment."

✓ Grammatically correct

Science

Academia

News & Media

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

In addition, oscillation amplitude may fluctuate over time.

Yale University

Moreover, the persistence of implemented changes may fluctuate over time.

Health & Justice

Presumably underlying genetic variation takes some time to develop and may fluctuate over time.

Genetics

Utility values may fluctuate over time as individuals adapt to a given health state.

BMJ Open

One loss can trigger other losses so that there is a cascade of adverse events, and felt adversity might fluctuate over time.

Ageing and Society

As mentioned at the beginning of the paper, gene networks fluctuate over time under the influence of extrinsic and intrinsic noise.

BMC Systems Biology

Ecosystems fluctuate over time.

University of California, Berkeley

State budgets fluctuate over time.

Harvard University

Note that the actual shoreline tended to fluctuate over time.

University of California, Berkeley

"What I do know is that wildlife populations fluctuate over time for a number of reasons.

The New York Times

The depths of these deep and shallow water tables in hills fluctuate over time.

Geomorphology

Expert writing Tips

Best practice

When using "fluctuate over time", ensure the context clearly indicates what is changing or varying. For example, "The concentration of the chemical fluctuated over time" provides more clarity than "The situation fluctuated over time".

Common error

Avoid attributing fluctuation solely to random chance without considering underlying factors. While some fluctuations may be random, many are driven by specific causes. Investigate potential reasons rather than assuming unpredictability.

Linguistic Context

The phrase "fluctuate over time" acts as a verb phrase that often modifies a noun, describing how something changes or varies across a period. Ludwig provides numerous examples showcasing its use in diverse contexts.

Expression frequency: Very common

Frequent in

Science

60%

Academia

20%

News & Media

10%

Less common in

Formal & Business

5%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "fluctuate over time" is a grammatically sound and frequently used expression to describe changes or variations that occur across a period. As highlighted by Ludwig AI, it is most commonly found in scientific and academic contexts, with a neutral to formal register. The phrase is versatile, lending itself to various sentence structures where the goal is to convey non-static behavior. When using this phrase, ensure the context clearly indicates what is changing. Common alternatives include "vary over time" and "change over time". While effective, be mindful of attributing fluctuations solely to chance without exploring underlying causes.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

vary over time

Replaces "fluctuate" with "vary", suggesting a general change without necessarily implying irregular movement.

change over time

Uses "change" instead of "fluctuate", indicating a transformation or alteration as time progresses.

oscillate over time

Substitutes "fluctuate" with "oscillate", emphasizing a rhythmic back-and-forth movement.

evolve over time

Employs "evolve" instead of "fluctuate", focusing on a gradual development or unfolding.

shift over time

Replaces "fluctuate" with "shift", highlighting a movement or change in position.

alter over time

Uses "alter" instead of "fluctuate", suggesting a modification or adjustment over a period.

differ over time

Substitutes "fluctuate" with "differ", emphasizing a divergence or distinction that emerges as time passes.

move over time

Uses the word "move" to suggest motion or alterations but is less specific than "fluctuate".

develop over time

This alternative indicates a growing or unfolding change instead of irregular variations.

be modified over time

This alternative implies that something undergoes deliberate alterations, rather than simply changing naturally.

FAQs

How can I use "fluctuate over time" in a sentence?

You can use "fluctuate over time" to describe something that changes or varies at different points in time. For example: "The company's profits "fluctuate over time" due to seasonal demand."

What are some alternatives to "fluctuate over time"?

Alternatives include "vary over time", "change over time", or "oscillate over time", depending on the specific nuance you want to convey.

Is it redundant to say "fluctuate over time"?

While "fluctuate" inherently implies change, adding "over time" emphasizes that the changes occur across a period, clarifying the temporal aspect. It's often useful for emphasis or clarity.

Which is correct, "fluctuate over time" or "fluctuate through time"?

"Fluctuate over time" is the more common and idiomatic expression. "Fluctuate through time" is less frequent and may sound awkward to some English speakers.