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
a substantial amount of time
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a substantial amount of time" is correct and usable in written English.
It can be used when discussing a significant duration or period required for an activity or process. Example: "The project took a substantial amount of time to complete due to unforeseen challenges."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(20)
a considerable period
a significant duration
a prolonged period
an extended duration
a lengthy span
a good while
an appreciable duration
a noteworthy interval
a considerable amount of time
a respectable amount of time
much time
a vast amount of time
spanning decades of
a sizeable amount of time
a great amount of difficulty
a good deal of time
a larger amount of time
a lengthy interval
hours on end
a large chunk of time
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
52 human-written examples
In one case, Dr. Davis said, a customer visited a pet store for a substantial amount of time to buy a reptile.
News & Media
Over the course of the tournament, that can add up to a substantial amount of time".
News & Media
"After a substantial amount of time, they realized that their children had been trafficked".
News & Media
"But then there is a substantial amount of time to unpull the trigger.
News & Media
Senator Schumer added that his bill would give industry a substantial amount of time to switch to other plastics.
News & Media
Off-screen, he seems to have spent a substantial amount of time trying to shape his children in his image.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
6 human-written examples
Otto Hunziker would spend a substantial amount of time studying and improving these analytic methods.
Wiki
They will be staying at another address for a substantial amount of time".
News & Media
These effects are generally seen simply when the children spend a substantial amount of time with both parents.
Wiki
Developing partnerships with willing districts and schools and acquiring parental consent for students requires a substantial amount of time, which is beyond the reach of most grants.
Science
Players can clock in a substantial amount of time on character creation, such is the level of customisation on offer here.
News & Media
Expert writing Tips
Best practice
When using "a substantial amount of time", ensure the context clearly indicates what activity or process occupies this duration. This adds clarity and prevents ambiguity.
Common error
Avoid using "a substantial amount of time" when a more precise duration can be provided. While useful for general estimations, providing specific timeframes (e.g., "several weeks", "over two years") enhances clarity and professionalism.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a substantial amount of time" functions as an adverbial phrase, modifying a verb or clause to indicate the duration of an action or state. It is often used to emphasize that a significant period is involved, as seen in Ludwig's examples.
Frequent in
News & Media
40%
Science
35%
Wiki
10%
Less common in
Formal & Business
5%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "a substantial amount of time" is a versatile phrase indicating a notably long duration. As confirmed by Ludwig, it is grammatically correct and widely used across diverse contexts, including news, science, and general writing. While appropriate for most situations, consider using more precise timeframes when possible to enhance clarity. Remember to use this phrase when you need to generally indicate a long duration of time.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a considerable period
Focuses on the duration being noteworthy.
a significant duration
Emphasizes the importance of the time span.
a prolonged period
Highlights the extended nature of the time.
an extended duration
Stresses the length of the time involved.
a lengthy span
Uses a more informal word to describe a long period.
a good while
Offers a colloquial alternative for a long duration.
an appreciable duration
Highlights that the duration is easily noticed.
a noteworthy interval
Emphasizes the remarkable aspect of a time interval.
a respectable length of time
Indicates the duration is considerable and worthy of recognition.
an important timeframe
Highlights the relevance and consequence of the timeframe.
FAQs
How can I use "a substantial amount of time" in a sentence?
Use "a substantial amount of time" to refer to a notably long duration dedicated to an activity. For example: "The research required "a substantial amount of time" to gather sufficient data."
What can I say instead of "a substantial amount of time"?
You can use alternatives like "a considerable period", "a significant duration", or "a prolonged period" depending on the specific nuance you wish to convey.
Is it better to use "a significant amount of time" or "a substantial amount of time"?
Both "a significant amount of time" and "a substantial amount of time" are correct and largely interchangeable. The choice often depends on personal preference or stylistic considerations, as they convey a similar meaning of a considerable duration.
What's the difference between "a substantial amount of time" and "a short amount of time"?
"A substantial amount of time" refers to a long or considerable duration, whereas "a short amount of time" refers to a brief or limited duration. They are antonyms, representing opposite ends of the temporal spectrum.
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
4.5/5
Expert rating
Real-world application tested