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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
he does know
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "he does know" is correct and usable in written English.
It can be used to emphasize someone's knowledge or awareness about a particular subject or situation. Example: "Despite his humble demeanor, he does know a lot about the topic we are discussing."
✓ Grammatically correct
News & Media
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
56 human-written examples
He does know better.
News & Media
He does know.
News & Media
"But he does know where it is".
News & Media
He does know the president somewhat.
News & Media
"And in fact he does know better.
News & Media
The one thing he does know is city politics.
News & Media
He does know it, but his "pressures" cloud his thinking.
News & Media
He does know why; he knows exactly why.
News & Media
"And it's frustrating because he does know a lot.
News & Media
And, yes, he does know how to swear in English".
News & Media
So how good could he be when he does know?
News & Media
Expert writing Tips
Best practice
Use "he does know" to add emphasis or express surprise that someone possesses certain knowledge. It's effective in refuting assumptions about someone's lack of awareness.
Common error
Don't use "he does know" when a simple "he knows" suffices. Overusing the emphatic form can make your writing sound unnatural or forced. Reserve it for situations where emphasis is truly needed.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "he does know" functions as an emphatic affirmation. It is used to stress that someone indeed possesses knowledge, often in response to an implied doubt or contrary expectation. Ludwig's analysis supports this through numerous examples showcasing this emphatic usage.
Frequent in
News & Media
85%
Science
10%
Formal & Business
3%
Less common in
Encyclopedias
1%
Wiki
0.5%
Reference
0.5%
Ludwig's WRAP-UP
In summary, the phrase "he does know" is a grammatically sound and frequently used construction for adding emphasis to the fact that someone possesses knowledge. According to Ludwig, this phrase functions as an emphatic affirmation. It is used across various contexts, including News & Media and Science, with a neutral register suitable for both formal and informal communication. While "he does know" is widely accepted, it is best reserved for situations where emphasis is truly necessary to avoid sounding unnatural. Related phrases such as "he is aware" or "he understands" can provide alternative ways to express knowledge and awareness, depending on the context and desired nuance.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
he understands
Highlights comprehension and grasp of a concept or situation.
he is familiar with
Implies a basic understanding or acquaintance with something.
he is aware
Focuses on awareness rather than explicit knowledge, implying a consciousness of something.
he is informed
Suggests knowledge gained from specific information or sources.
he is conscious of
Implies being mindful or attentive to something, emphasizing a state of awareness.
he is cognizant
Emphasizes a formal or intellectual awareness, suitable for more serious contexts.
he has insight into
Focuses on a deeper understanding or perspective regarding a situation.
he is no stranger to
Suggests familiarity with something through experience, implying knowledge.
he is acquainted with
Suggests a formal or superficial knowledge of something or someone.
he is well-versed in
Highlights expertise or deep knowledge in a particular subject.
FAQs
How can I use "he does know" in a sentence?
Use "he does know" to emphasize that someone possesses a particular piece of knowledge, especially when it might be surprising or contrary to expectations. For example, "Despite his quiet demeanor, "he does know" a lot about astrophysics".
What are some alternatives to "he does know"?
You can use alternatives like "he is aware", "he understands", or "he is familiar with" depending on the specific nuance you want to convey. The choice depends on whether you want to emphasize awareness, comprehension, or acquaintance.
Is it grammatically correct to say "he does know"?
Yes, it is grammatically correct. The auxiliary verb "does" is used to add emphasis to the verb "know". This construction is common in English to highlight the truth or certainty of a statement.
When should I use "he knows" versus "he does know"?
Use "he knows" for a simple statement of fact. Use ""he does know"" to add emphasis, express surprise, or contradict a prior assumption about the person's knowledge. The added "does" provides extra force to the statement.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested