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
which has become
Grammar usage guide and real-world examplesUSAGE SUMMARY
"which has become" is correct and usable in written English.
You can use it when describing a change that has happened over a period of time. For example, "The store, which has become one of the most popular in the city, has been open for over two years."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(15)
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
60 human-written examples
The first is corruption, which has become endemic.
News & Media
Parody on the brutal novel which has become so popular.
News & Media
(k) which defined the terms "cease-and-desist order which has become final", "order which has become final", and "violation", as those terms were used in this section.
Academia
Ben also wrote the book People Analytics, which has become an international bestseller.
Above, the servery, which has become a draw to students from across campus.
Academia
Multitenancy is a key feature of cloud computing which has become a major concept recently.
This paper investigates a new design of dynamic filtration system which has become recently available.
Science
They also trade for opium, which has become widely used by the Kyrgyz.
News & Media
He spends time in Nashville, which has become his second musical home.
News & Media
Specifically, the euro zone needs to address its underlying fiscal structure, which has become severely dysfunctional.
News & Media
Recently, I found Mother's wartime identity card, which has become an object of contemplation.
News & Media
Expert writing Tips
Best practice
Use "which has become" to connect a nonrestrictive clause, providing extra information about a noun without changing the sentence's core meaning. Ensure the clause is set off with commas.
Common error
Avoid using "that" in place of "which" when introducing a nonrestrictive clause. "That" is generally used for restrictive clauses that are essential to the sentence's meaning.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which has become" functions as a relative clause, specifically a nonrestrictive (or nonessential) clause. It provides additional, non-essential information about a noun or noun phrase. Ludwig provides numerous examples demonstrating its use in various contexts.
Frequent in
News & Media
46%
Academia
22%
Science
22%
Less common in
Encyclopedias
3%
Wiki
3%
Formal & Business
1%
Ludwig's WRAP-UP
In summary, the relative clause "which has become" is a grammatically sound and versatile construction used to add non-essential information about a noun that has changed over time. As affirmed by Ludwig AI, it's correct and widely applicable in various writing contexts. It's most frequently encountered in News & Media, Academic, and Scientific sources, indicating a broad applicability across diverse registers, from neutral to formal. Keep in mind to use commas to offset the "which has become" clause, and avoid interchanging "which" with "that" incorrectly. By grasping these nuances, you can effectively use "which has become" to express transformation and evolution in your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that has evolved into
Focuses on the evolutionary aspect of the change, emphasizing a gradual development.
that has developed into
Focuses on the development process and the resulting outcome.
that has turned into
Emphasizes a complete transformation from one state to another.
that has been transformed into
Implies a more significant and impactful change.
that has grown to be
Highlights the growth or expansion of something over time.
that has emerged as
Highlights the way something new has arisen or come into prominence.
which is now
Offers a more direct and simple way to state the current state.
which is recognized as
Focuses on public acknowledgment or recognition of a new status.
that is now considered
Focuses on current opinion or acceptance of a thing.
that is now known as
Indicates a change in name or identity over time.
FAQs
How to use "which has become" in a sentence?
Use "which has become" to introduce a nonrestrictive clause that provides additional information about a noun. For example: "The city, "which has become" a major tourist destination, offers many attractions."
What can I say instead of "which has become"?
You can use alternatives like "that has evolved into", "that has turned into", or "which is now depending on the context.
Which is correct, "which has become" or "that has become"?
"Which has become" is typically used for nonrestrictive clauses, while "that has become" is used for restrictive clauses. Nonrestrictive clauses add extra information and are set off by commas.
What's the difference between "which has become" and "that has become"?
"Which has become" introduces a nonrestrictive clause, providing additional, non-essential information. "That has become" introduces a restrictive clause, providing essential information that defines the noun. The clause starting with "which" is set off by commas, whereas the clause starting with "that" is not.
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