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 topic has been
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a topic has been" is correct and usable in written English.
It can be used when discussing a subject that has been previously mentioned or addressed in a conversation or text. Example: "In our last meeting, a topic has been raised regarding the new marketing strategy."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(4)
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
7 human-written examples
A topic has been added on the future trends of rugs and hand-knotted carpets.
Mr. Oliveira lets conversations go on in long takes until a topic has been picked over from every conceivable angle.
News & Media
Still, analyzing public and private conversations to put a number score on shares and likes around a topic "has been a part of the platform possibly as long as Facebook has existed," Mackenzie added.
News & Media
A topic has been described as a seminal event or activity alongside occurrences of other secondary events and activities [81].
Science
Generally, the paper industry as a topic has been researched rather marginally in the Nordic countries from the perspective of the environmental, economic and transportation aspects put together.
A topic has been represented with many sub-topics and as the granularity of an event is too small to describe a topic, and a less granular event has been used to describe only a sub-topic in [73].
Science
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
Petitioners would have to be on the electoral roll and parliamentary time might also be refused if a topic had been recently debated.
News & Media
But, after a trending topic has been forgotten, people still have to live where they live.
News & Media
Of course, a hot topic has been taxes, especially the Alternative Minimum Tax.
News & Media
In many ways, the veterinary drug sector faces similar problems but as a research topic has been even more neglected.
Science
If a certain topic has been the number one concern of consumers for 13 years running, a renewed and continued focus on it would seem appropriate.
News & Media
Expert writing Tips
Best practice
When using "a topic has been", ensure that the context clearly indicates whether the topic is being introduced, discussed, or concluded. This helps provide clarity to the reader or listener.
Common error
Avoid overuse of the passive voice when using "a topic has been". Ensure that the actor or agent responsible for raising the topic is either clear from context or explicitly stated to maintain clarity and avoid ambiguity.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a topic has been" functions as a sentence fragment or a clause within a larger sentence, typically introducing or referring to a subject that has been previously mentioned or addressed. Ludwig AI confirms its grammatical correctness and usability.
Frequent in
Science
33%
News & Media
50%
Formal & Business
17%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "a topic has been" is grammatically sound and functions to introduce or refer to a subject that has been previously brought up for discussion. As Ludwig AI confirms, this phrase is suitable for various contexts, primarily in science, news, and formal settings. Although "a topic has been" is considered to have a neutral to formal register, it’s crucial to ensure clarity by indicating the actor or agent responsible for the topic's introduction. By avoiding overuse of the passive voice and ensuring clear context, writers can effectively use this phrase to transition between ideas and highlight key points in their discourse.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a matter has been raised
Emphasizes the act of bringing up a topic for discussion.
an issue has arisen
Highlights the rise of a problem or concern needing attention.
a subject has emerged
Focuses on the emergence of a subject rather than its established presence.
a point has been considered
Highlights the act of thinking about a specific point.
the question was addressed
Specifically points to a question being dealt with.
the theme has been developed
Suggests that a theme or idea has been elaborated upon.
the area was explored
Focuses on the investigation of an area of interest.
a discussion ensued
Indicates that a conversation or debate took place.
the focus shifted to
Suggests a change in the main point of attention.
attention has turned to
Highlights the direction of attention towards a subject.
FAQs
How can I use "a topic has been" in a sentence?
Use "a topic has been" to introduce a subject that has been brought up for discussion or consideration. For example, "a topic has been introduced regarding budget cuts".
What are some alternatives to "a topic has been"?
You can use alternatives like "a subject has emerged", "an issue has arisen", or "a matter has been raised" depending on the context.
Is it better to say "the topic was discussed" or "a topic has been discussed"?
Both are correct, but "the topic was discussed" implies a completed action, while "a topic has been discussed" suggests a topic that has been brought up and possibly still under consideration. Choose the phrasing that best fits the context.
What's the difference between "a topic has been" and "the topic is"?
"a topic has been" indicates that a subject has been introduced or addressed, while "the topic is" introduces or defines the current subject of discussion. The first implies prior action, while the second sets the stage for the present discussion.
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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested