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
duration required for
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "duration required for" is correct and usable in written English.
It can be used when discussing the amount of time needed to complete a task or process. Example: "The duration required for the project completion is estimated to be six months."
✓ Grammatically correct
Science
News & Media
Formal & Business
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
40 human-written examples
There is a difference between the duration required for the specimen to reach the end of primary compression (tend) and the duration required for the pore-water pressure to reach equilibrium (teq) for the saturated and unsaturated states.
The pulse duration required for RESET operation is four orders longer than that for the SET process.
Science
The average duration required for union in conservative group was 11.29 weeks, as compared to 9.27 weeks in operative group.
The results of one-way ANOVA revealed that the duration required for air-drying depended on the site of the restoration.
Science
Although there are many factors that affect solvent removal [11 15], the actual duration required for solvent evaporation in the clinical situation has not yet been established.
Science
In young individuals employed in physically demanding work, it is even more challenging because of the duration required for immobilisation and thus time required off work.
Human-verified similar examples from authoritative sources
Similar Expressions
20 human-written examples
The areal capacitance value vs. current density plot is presented in Fig. 9b, in which the time durations required for each discharging period at different current density are labeled.
Science
(muscadine grape) is particularly problematic due to extremely low efficiency, including extended culture durations required for embryo plant conversion.
Science
This application of TET means a lowered drug dose and a shortened duration required in the treatment for these patients.
Science
Figure 5 compares time duration required by binary arithmetic coding for followed by AES with a block size of and 1/2 feedforward convolutional encoder with our proposed method.
Subjects exercised at either 50 or 65% of their predetermined VO2peak for the duration required to expend 350 kcal.
Science
Expert writing Tips
Best practice
When precision is crucial, use "duration required for" to clearly indicate the time needed for a process or task. It's particularly useful in technical writing and scientific reports.
Common error
Avoid using overly vague language when describing time. Instead of saying "a long time is required", specify the "duration required for" clarity.
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "duration required for" functions as a noun phrase modifier. It specifies the amount of time necessary for a particular event or action to occur, as seen in the Ludwig examples which come predominantly from scientific sources, according to Ludwig AI.
Frequent in
Science
70%
News & Media
15%
Formal & Business
10%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "duration required for" is a common expression, predominantly used in scientific and technical contexts to specify the time needed for a process or action. As noted by Ludwig AI, its grammatical function is that of a noun phrase modifier, aiming to provide precise information. While grammatically correct, clarity and precision should be emphasized to avoid ambiguity. Consider using alternative phrases like "time needed for" depending on the formality required. Always strive for specificity when using "duration required for" to enhance clarity in both writing and speech.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
time needed for
This alternative focuses on the 'time' aspect rather than 'duration', offering a slightly more direct approach.
time frame necessary for
Replaces 'duration' with 'time frame' and 'required' with 'necessary', emphasizing the specific period.
period needed for
Substitutes 'duration' with 'period', providing a more concise alternative.
length of time needed for
This option specifies 'length of time' instead of simply 'duration', adding clarity.
interval necessary for
Replaces 'duration' with 'interval', suggesting a specific segment of time.
amount of time required for
Specifies 'amount of time' offering a slightly more verbose but equally clear option.
timescale required for
Utilizes 'timescale' to emphasize the scale or scope of the time involved.
the time span needed for
This phrase highlights the continuous extent of time using 'time span'.
the extent of time necessary for
This alternative emphasizes the total amount of time, using 'extent'.
the time allotment necessary for
This option emphasizes that time has been 'allotted' or assigned for a specific purpose.
FAQs
How can I use "duration required for" in a sentence?
You can use "duration required for" to specify the amount of time needed to complete a process. For example, "The "duration required for" the experiment is 24 hours".
What are some alternatives to "duration required for"?
Alternatives include "time needed for", "period necessary for", or "length of time needed for", depending on the context.
Is there a difference between "duration required for" and "time needed for"?
While similar, "duration required for" can imply a more formal or technical context, whereas "time needed for" is generally more informal.
In what situations is "duration required for" most appropriate?
"Duration required for" is suitable for scientific reports, technical manuals, or any context where precision and clarity about the time needed are essential.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested