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
believe so
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "believe so" is correct and usable in written English.
It is typically used to express agreement or affirmation regarding a statement or belief, often in response to a question. Example: "Do you think we will finish the project on time? I believe so."
✓ Grammatically correct
News & Media
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
30 human-written examples
I believe so, yeah.
News & Media
"And I believe so".
News & Media
No, I don't believe so".
News & Media
I still believe so".
News & Media
I believe so, yes.
News & Media
Policymakers, unsurprisingly, would have you believe so.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
28 human-written examples
Ms D believes so.
News & Media
She believes so.
News & Media
Ullmann believes so.
News & Media
Mr. Bukiet believes so.
News & Media
The New York Civil Liberties Union believes so.
News & Media
Expert writing Tips
Best practice
Use "believe so" to provide a concise and affirmative response when you generally agree with a statement or suggestion. It avoids unnecessary repetition and maintains a conversational tone.
Common error
Avoid using "believe so" excessively in highly formal writing or presentations. Opt for more direct and assertive alternatives, such as "I concur" or "I agree", to maintain a professional tone.
Source & Trust
91%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "believe so" functions as a concise affirmative response, expressing agreement or affirmation. It serves as a shortened form of "I believe that is the case", offering a quick way to indicate concurrence. As confirmed by Ludwig AI, the phrase is grammatically correct and usable.
Frequent in
News & Media
84%
Science
7%
Formal & Business
3%
Less common in
Academia
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "believe so" serves as a succinct and affirmative response, indicating agreement or concurrence. Ludwig AI confirms its grammatical correctness and usability in written English. Predominantly found in news and media contexts, it offers a versatile way to express shared beliefs, though care should be taken to avoid overuse in highly formal settings. Consider alternatives like "I think so" or "I suppose so" for nuanced expressions of agreement. The prevalence of "believe so" in reputable sources underscores its established place in English communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
I think so
More general expression of agreement or affirmation.
I suppose so
Indicates a less enthusiastic agreement or acceptance.
I imagine so
Suggests agreement based on assumption rather than direct knowledge.
I assume so
Similar to "I imagine so", implying a degree of uncertainty.
I expect so
Suggests anticipation or expectation of something being true.
I guess so
Indicates a hesitant or reluctant agreement.
I'd say so
Expresses an opinion or judgment with a degree of confidence.
I feel so
Expresses agreement based on intuition or feeling.
I understand so
Implies agreement based on understanding or information received.
I gather so
Indicates agreement based on inference or deduction.
FAQs
How can I use "believe so" in a sentence?
Use "believe so" as a concise response when you agree with a statement or suggestion. For example, if someone asks, "Do you think it will rain today?", you can reply, "I believe so".
Are "I think so" and "believe so" interchangeable?
While similar, "I think so" is more general, while "believe so" implies a stronger conviction. Consider using alternatives such as "I suppose so" for less enthusiastic agreement.
What is the difference between "believe so" and "I know so"?
"Believe so" indicates an opinion or assumption, while "I know so" suggests certainty and direct knowledge. Choose the phrase that accurately reflects your level of confidence.
Is it correct to say "I am believing so"?
No, the correct phrasing is "I believe so". The continuous tense is not typically used with "believe" in this context. Consider the alternative "I think so".
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
91%
Authority and reliability
4.5/5
Expert rating
Real-world application tested