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
I completely believe
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "I completely believe" is grammatically correct and can be used in written English.
It is often used to express complete conviction or faith in something. Example: "I completely believe in the power of positive thinking to change our lives for the better."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
I fully believe
I utterly believe
I am convinced that
I entirely believe
I strongly believe
I firmly believe
I have no doubt that
I am sure that
It is my firm belief that
I am of the opinion that
I absolutely believe
I completely am
I thoroughly believe
I altogether believe
I completely understood
I merely believe
I almost believe
I deeply believe
I completely disagree
I genuinely believe
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
16 human-written examples
I completely believe that Chris was born as two people".
News & Media
"I completely believe in slavish devotion to culinary tradition," she said.
News & Media
I completely believe in myself and this hasn't dampened my confidence.
News & Media
I completely believe in getting the market incentives right for all of this, and encouraging investment and innovation.
News & Media
I completely believe Edgar "did not like Humpty Dumpty" for the reason that the egg-human "lacked all manly definition and was so irrevocably fragile", although, as a seven year-old, he probably couldn't have put it into words that way.
News & Media
"I completely believe we can beat them and take points off them".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
42 human-written examples
"I completely believed – like a ceramics scientologist".
News & Media
"I completely believed him," he said.
News & Media
"I knew I had to make clothes I completely believed in.
News & Media
Because he was so high-minded – as close as adland gets to a registered saint – I completely believed him.
News & Media
Having been, as it were, mad, and lived with horror which at that moment I completely believed in, I know that rationality doesn't carry you all the way.
News & Media
Expert writing Tips
Best practice
When expressing strong conviction, use "I completely believe" to clearly communicate your unwavering stance, ensuring it aligns with the context and tone of your writing.
Common error
Avoid using "I completely believe" for trivial opinions or speculative statements; reserve it for situations where you genuinely hold a strong, informed conviction.
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I completely believe" primarily functions as a declarative statement expressing strong conviction. As Ludwig AI explains, it conveys the speaker's absolute certainty or faith in a particular idea or proposition. Examples show its use in expressing personal beliefs, support for initiatives, or confidence in future outcomes.
Frequent in
News & Media
50%
Science
25%
Formal & Business
12.5%
Less common in
Academia
6.25%
Wiki
6.25%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "I completely believe" is a grammatically correct and commonly used phrase to express a strong, unwavering conviction. Ludwig AI confirms its acceptability in written English. It appears frequently in news and media, science, and formal business contexts, demonstrating its versatility across various registers. While suitable for expressing firm beliefs, it's best reserved for situations where such conviction is genuinely held and appropriately conveyed. Consider alternatives like "I fully believe" or "I am convinced that" depending on the desired nuance and context.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
I fully believe
Uses "fully" instead of "completely", suggesting a total or absolute belief, with minimal semantic difference.
I utterly believe
Replaces "completely" with "utterly", intensifying the feeling of conviction, with negligible change in meaning.
I entirely believe
Substitutes "completely" with "entirely", denoting a whole or undiminished belief, with almost identical connotation.
I strongly believe
Emphasizes the strength of the belief rather than its completeness, implying a firm conviction.
I firmly believe
Similar to "strongly believe", it highlights the steadfast nature of the belief.
I am convinced that
Shifts the construction to "convinced", indicating a state of being persuaded, rather than an act of believing.
I have no doubt that
Expresses a lack of uncertainty, conveying a strong belief through the absence of doubt.
I am sure that
Uses "sure" to indicate confidence in the truth of something, presenting a belief as a certainty.
It is my firm belief that
Rephrases the statement to emphasize that the belief is personal and resolute.
I am of the opinion that
Presents the belief as a personal opinion or judgment, softening the assertive tone.
FAQs
What does "I completely believe" mean?
The phrase "I completely believe" signifies a strong conviction or unwavering faith in something. It expresses that you are fully persuaded and certain about a particular idea, concept, or statement.
How to use "I completely believe" in a sentence?
Use "I completely believe" to express your strong conviction or unwavering faith in something. For example, "I completely believe that hard work leads to success".
What can I say instead of "I completely believe"?
You can use alternatives like "I fully believe", "I utterly believe", or "I am convinced that" depending on the context.
Is "I completely believe" formal or informal?
The phrase "I completely believe" is generally considered neutral and can be used in both formal and informal contexts, although it's important to ensure its use aligns with the overall tone and register of the communication.
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
4.1/5
Expert rating
Real-world application tested