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 question this
Grammar usage guide and real-world examplesUSAGE SUMMARY
The part of a sentence "I question this" is correct and can be used in written English.
It is typically used when expressing doubt or skepticism about something. For example, "I question the validity of this report, as it seems to contain several inaccuracies."
✓ Grammatically correct
News & Media
Science
Alternative expressions(2)
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
13 human-written examples
With the utmost temerity I question this.
News & Media
I question this whole thing about deference.
News & Media
Though I question this as I've only seen kangaroos move fast for a mate, some food or a punch-up.
News & Media
The response: "Oh, you can't do marketing for an important set-up like this part time!" I question this logic.
News & Media
Even if marketisation is now an unstoppable juggernaut (and I question this assumption), we can resist its assault on our collective consciousness.
News & Media
Furthermore, I question this employee's judgment, since he knows he's putting the firm in a difficult position.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
45 human-written examples
When I questioned this, he snarled: "We all know about your sexuality - all too fucking much about it, in fact".
News & Media
I questioned this.
News & Media
I questioned this strategy.
News & Media
I questioned this through most of my email to him.
News & Media
"I always question this idea of market share.
News & Media
Expert writing Tips
Best practice
Use "I question this" to politely express doubt or disagreement, particularly when you need to challenge an assumption or statement without being overly confrontational.
Common error
While "I question this" is acceptable, overuse can make your writing sound repetitive. Vary your language by using alternatives like "I doubt this" or "I challenge this idea" to maintain a sophisticated tone.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I question this" functions as an expression of doubt or skepticism. According to Ludwig AI, the phrase is grammatically correct and widely used. It introduces a challenge or inquiry into a statement or assumption.
Frequent in
News & Media
60%
Science
20%
Formal & Business
10%
Less common in
Wiki
10%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "I question this" is a grammatically sound and commonly used phrase to express doubt or skepticism. As Ludwig AI confirms, it is suitable for various contexts, especially in news and media. While it's generally acceptable, be mindful of overuse, particularly in formal writing, and consider using alternatives like "I doubt this" or "I challenge this idea" to maintain variety and sophistication in your writing. The key is to use the phrase strategically to challenge assumptions or statements politely and effectively.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
I doubt this assertion
Replaces "question" with "doubt" and "this" with "this assertion", making it slightly more formal.
I challenge this idea
Uses "challenge" instead of "question", suggesting a more direct opposition.
I dispute this claim
Replaces "question" with "dispute", implying a stronger disagreement with a specific statement.
I am skeptical about this
Emphasizes the speaker's skepticism towards the subject.
I'm not convinced by this
Expresses a lack of belief or persuasion.
I have reservations about this
Indicates hesitations or concerns about the topic.
I take issue with this
Suggests a specific point of contention.
I'm dubious about this
Expresses a feeling of uncertainty or doubt.
I don't buy this
An informal way of saying that one doesn't believe something.
I am not so sure about this
A more tentative expression of doubt.
FAQs
How can I use "I question this" in a sentence?
You can use "I question this" to politely express doubt or disagreement about a statement, idea, or assumption. For example, "The report claims a significant increase in productivity, but I question this based on my observations."
What are some alternatives to "I question this"?
Is "I question this" formal or informal?
"I question this" is generally considered neutral to slightly formal. It's appropriate for many contexts, but for very formal writing, consider alternatives that sound more sophisticated, like "I have reservations about this".
What's the difference between "I question this" and "I doubt this"?
While both express uncertainty, "I question this" implies a more active inquiry or examination, whereas "I doubt this" suggests a stronger feeling of disbelief. You might question something to understand it better, but you doubt something you are inclined not to believe.
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested