for what time span

USAGE SUMMARY

The phrase "for what time span" is correct and usable in written English.
You can use it when inquiring about the duration or length of time related to a specific event or situation. Example: "Can you clarify for what time span the project will be funded?"

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

"For what time span?" He said a week.

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

But over what time span?

The Guardian

And the rate at which they're warming depends on what time span you're looking at.

The New York Times

"We want to wait and see to what extent and in what time span the currency valuation will be adjusted," he said.

The New York Times

The aim here was to asses to what degree and over what time span an increased conversion of existing broadleaved forests to planted coniferous forests could cover an increased demand for wood by studying the effects of implementing Option (b) above.

New Zealand Journal of Forestry Science

We then determine whether local elimination is possible, and if so, in what time span.

BMC Infectious Diseases

119 It is unclear just how completely and over what time span recovery occurs.

Gut

When adjusting for the time span over which the rates of phenotypic change were estimated the estimates are pretty much in line with what should be expected (Hendry et al. 2008).

Evolutionary Applications

Chosen time spans are representative for any time span that might be chosen in the future.

International Journal of Coal Science & Technology

Only prevalences above a level of 3% to 8% can be excluded for this time span.

Plosone

Five time series were generated for each time span in both DD and LD conditions.

BMC Systems Biology

Expert writing Tips

Best practice

When using the phrase "for what time span", ensure the context clearly indicates the event or activity to which the time span refers. This avoids ambiguity.

Common error

Avoid using "for what time span" when a simpler question like "how long" or "when" would suffice. Overusing the phrase can make your writing sound unnecessarily formal or convoluted.

Linguistic Context

The phrase "for what time span" functions as an interrogative phrase used to inquire about the duration or length of a particular event, process, or period. As Ludwig AI confirms, it is grammatically correct. It elicits information about the temporal extent of something.

Expression frequency: Rare

Frequent in

Science

40%

News & Media

30%

Formal & Business

15%

Less common in

Wiki

10%

Encyclopedias

3%

Reference

2%

Ludwig's WRAP-UP

In summary, the phrase "for what time span" is a grammatically sound interrogative used to inquire about the length or duration of something. While considered rare in overall usage, Ludwig AI analysis indicates its presence in formal contexts like science, news media, and business. When writing, ensure the scope of the time span is clear to avoid ambiguity, and consider simpler alternatives like "how long" when appropriate. Its formal nature makes it suitable for specific scenarios requiring precise information on duration.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

over what period

Replaces "time span" with "period", implying a possibly longer duration.

for what duration

Uses "duration" instead of "time span", which is a more formal alternative.

during which timeframe

More formal and specific, using "timeframe" instead of "time span".

across what length of time

Emphasizes the "length" of the time being considered.

in what timeframe

Replaces "for what" with "in what", slightly altering the phrasing.

for how long a period

More verbose, but conveys the same meaning.

within what time period

Focuses on the enclosure of time.

spanning what time

Alters the structure to focus on "spanning".

covering what period

Implies an encompassing range of time.

through what duration

Suggests passage of time within a certain period.

FAQs

How can I rephrase "for what time span" to sound more natural?

You can use simpler alternatives such as "how long", "over what period", or "what's the duration" depending on the context.

Is "for what time span" appropriate for formal writing?

Yes, the phrase is suitable for formal writing, but ensure it fits the tone. Simpler alternatives like "for what duration" might be more appropriate depending on the overall style.

What's the difference between "for what time span" and "how long"?

"How long" is a more general and informal way to ask about duration. "For what time span" is more specific and formal, often used when the context requires a precise timeframe.

When is it best to use "for what time span" instead of "when"?

"When" asks about a specific point in time, whereas "for what time span" asks about a duration. Use "for what time span" when you need to know the length of an event or activity, not just its starting or ending point.