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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
that is formed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that is formed" is correct and usable in written English.
It can be used to describe the creation or development of something, often in a scientific or technical context. Example: "The crystal structure that is formed during the cooling process is crucial for the material's properties."
✓ Grammatically correct
News & Media
Encyclopedias
Science
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
59 human-written examples
"No weapon that is formed against thee shall prosper," it reads.
News & Media
"This whole community that is formed here is very fragile," he said.
News & Media
The explosive hazards of the reaction are associated primarily with the hydrogen gas that is formed.
Encyclopedias
Sarcoma, tumour of connective tissue (tissue that is formed from mesodermal, or mesenchymal, cells).
Encyclopedias
The view that is formed tomorrow, as the votes are counted, could well define Cameron for years to come.
News & Media
The vaccine they get attacks a protein that is formed by a genetic mutation and accelerates tumor growth.
News & Media
Virus-free progeny can be produced in oranges from a seed that is formed from the nucellus, a maternal tissue.
Encyclopedias
Hemosiderin is an iron-containing pigment that is formed from the hemoglobin of red blood cells that have disintegrated.
Encyclopedias
Cystine, a crystalline, sulfur-containing amino acid that is formed from two molecules of the amino acid cysteine.
Encyclopedias
The moving bone rotates within a ring that is formed from a second bone and adjoining ligament.
Encyclopedias
John Legend opens the Cushman & Wakefield Theatre, a smaller space inside the arena that is formed with the help of movable curtains, on Oct. 29.
News & Media
Expert writing Tips
Best practice
When describing scientific processes or natural phenomena, "that is formed" clearly indicates the creation or emergence of a substance, structure, or concept.
Common error
Avoid using "that is formed" in contexts where simpler verbs like "created" or "made" would suffice, especially in informal writing. Overusing the phrase can make your writing sound unnecessarily verbose.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that is formed" functions as a relative clause, modifying a noun or noun phrase by providing additional information about its creation or development. As shown by Ludwig, this phrase is grammatically sound and commonly used.
Frequent in
Science
47%
News & Media
32%
Encyclopedias
17%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "that is formed" is a grammatically correct and frequently used phrase that serves as a relative clause to describe the creation or development of something. As supported by Ludwig, it is commonly found in scientific, technical, and news-related contexts, indicating a neutral to formal register. While versatile, it's essential to consider simpler alternatives like "created" or "made" in more informal settings to avoid sounding overly verbose.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
which is created
Replaces "formed" with "created", emphasizing the act of bringing something into existence.
which is generated
Substitutes "formed" with "generated", highlighting the production or output of something.
that is produced
Uses "produced" instead of "formed", focusing on the manufacturing or cultivation aspect.
that is made
Employs "made" as a more general term for "formed", indicating construction or assembly.
what is established
Replaces the entire phrase with a passive construction using "established", referring to set up something.
that is developed
Uses "developed" instead of "formed", emphasizing a gradual growth or evolution.
that is constructed
Substitutes "formed" with "constructed", highlighting the building or assembling of something.
that is assembled
Replaces "formed" with "assembled", emphasizing the process of putting parts together.
that originates
Expresses the source or beginning of something rather than its formation.
that arises
Indicates something comes into being or starts to happen, instead of being actively formed.
FAQs
How can I use "that is formed" in a sentence?
You can use "that is formed" to describe the creation or development of something, such as "The crystal structure "that is formed" during cooling affects the material's properties".
What are some alternatives to "that is formed"?
Depending on the context, you can use alternatives such as "which is created", "that is produced", or "that is made".
Is "that is formed" formal or informal?
"That is formed" can be used in both formal and informal contexts, but it is more common in scientific, technical, and news writing. Simpler alternatives might be preferred in very informal settings.
When is it best to use "that is formed" over simpler alternatives?
Use "that is formed" when you want to emphasize the process of formation or when describing a specific scientific or technical process. In simpler contexts, "that is made" or "which is created" might be more appropriate.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested