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
belief that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "belief that" is correct and usable in written English.
It can be used when expressing a conviction or opinion about something. Example: "Her belief that hard work leads to success is evident in her dedication to her career."
✓ Grammatically correct
News & Media
Science
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
60 human-written examples
Her belief that progress is being made.
News & Media
"Zappos has a belief that really, we can sell anything".
News & Media
It's a belief that hasn't lost its appeal.
News & Media
(c) Belief that power exceeds Pthresh, =40.
(d) Belief that power does not exceed Pthresh, bel{B}.
(c) Belief that power exceeds Pthresh for =0.
(e) Belief that power exceeds Pthresh for =20.
(d) Belief that power exceeds Pthresh for =10.
(f) Belief that power exceeds Pthresh for =30.
(c) Belief that power exceeds Pthresh, bel{A}.
Consider the current belief that is is raining.
Science
Expert writing Tips
Best practice
Use "belief that" to introduce a statement of conviction or opinion. It clearly indicates that what follows is a subjective viewpoint, not necessarily a fact.
Common error
Avoid presenting a "belief that" as an objective truth. Always ensure that the context makes it clear that it's a subjective perspective or opinion being expressed, not an established fact.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "belief that" functions as a noun phrase introducing a subordinate clause. It indicates a specific conviction or opinion held by someone. As Ludwig AI indicates, this is a common and grammatically sound construction.
Frequent in
News & Media
34%
Science
29%
Formal & Business
10%
Less common in
Encyclopedias
3%
Wiki
4%
Reference
0%
Ludwig's WRAP-UP
In summary, "belief that" is a grammatically correct and widely used phrase to introduce a statement of conviction or opinion. As Ludwig AI confirms, the phrase is valid and prevalent in various writing contexts. It functions as a noun phrase introducing a subordinate clause, serving the purpose of expressing a subjective viewpoint. The phrase is suitable for neutral to formal registers, commonly found in News & Media, Science, and Formal & Business contexts. Related phrases include "conviction that" and "opinion that". When using the phrase, be mindful to present it as a subjective opinion rather than an objective fact.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
conviction that
Replaces "belief" with a stronger term implying deep-seated certainty.
opinion that
Substitutes "belief" with a more subjective and less assertive term.
view that
Replaces belief with a term indicating a perspective or outlook.
understanding that
Indicates an awareness or comprehension, closely related to belief.
idea that
Indicates a thought or notion, which may not be firmly held.
notion that
Similar to "idea", suggesting a preliminary or speculative belief.
presumption that
Implies an assumption made without concrete evidence.
assumption that
A belief accepted as true, often without proof.
supposition that
Suggests a tentative belief based on incomplete information.
thesis that
Presents a formal statement or argument for consideration.
FAQs
How can I use "belief that" in a sentence?
Use "belief that" to introduce a statement of conviction or opinion. For example, "Her "belief that hard work pays off" motivated her to study diligently."
What are some alternatives to "belief that"?
You can use alternatives like "conviction that", "opinion that", or "idea that" depending on the context.
Is it always appropriate to use "belief that" in formal writing?
Yes, "belief that" is appropriate for formal writing. It's a clear and professional way to introduce a subjective viewpoint. However, ensure the strength of your claim aligns with the context.
What's the difference between "belief that" and "believing that"?
"Belief that" is a noun phrase that introduces a statement of conviction, while "believing that" is a verb phrase that expresses the act of holding a belief. For example, "Her belief that hard work pays off is strong" vs. "She is believing that hard work pays off."
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested