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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
he realises
Grammar usage guide and real-world examplesUSAGE SUMMARY
"he realises" is correct and usable in written English.
You can use it when you want to express that someone has become conscious of something. For example: "He realises that he has made a mistake and decides to fix it."
✓ Grammatically correct
News & Media
Science
Wiki
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
He realises his limitations.
News & Media
(He realises that not everyone agrees).
News & Media
He realises that Odysseus is in disguise.
News & Media
"I don't think he realises the impact his recipes have.
News & Media
"He realises that, without the fans, Chelsea is nothing.
News & Media
People, he realises, are more important than pillars and plasterwork.
News & Media
"The next thing he realises it really is Fergie.
News & Media
He realises he can't write this kind of book.
News & Media
This can be tough for the performers – he realises that.
News & Media
But even he realises things are not easy.
News & Media
Don, for once, seems intimidated when he realises.
News & Media
Expert writing Tips
Best practice
Use "he realises" to clearly indicate a moment of understanding or recognition on the part of the subject. Ensure the context provides sufficient information about what is being realised for clarity.
Common error
Avoid using "he realises" when the context requires a different tense, such as "he realised" for past events or "he will realise" for future predictions. Tense consistency is crucial for conveying the correct timeline.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "he realises" functions as a declarative clause expressing a character's or person's moment of understanding or recognition. Ludwig shows it's commonly used to convey insights or shifts in awareness. This can be observed in various examples across different source types.
Frequent in
News & Media
68%
Wiki
13%
Science
12%
Less common in
Formal & Business
0%
Reference
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "he realises" is a grammatically correct and versatile phrase used to indicate a moment of understanding or recognition. According to Ludwig, its neutral register makes it suitable for various contexts, including news, science, and general writing. While synonyms like "he understands" or "he recognizes" exist, "he realises" often implies a sudden or dawning awareness. The phrase is most commonly found in news and media sources. Ensure correct tense usage to accurately convey the intended timeline, as highlighted by Ludwig AI.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
he understands
Simple substitution of "realises" with a direct synonym.
he recognizes
Another synonym for "realises", implying acknowledgement of something.
he comprehends
A more formal synonym for "understands".
he becomes aware
Replaces "realises" with a more descriptive phrase indicating the process of gaining awareness.
he comes to understand
Similar to "he understands" but emphasizes the process of reaching understanding.
he grasps
Implies a firm understanding or comprehension.
he figures out
Implies a process of reasoning to arrive at understanding.
it dawns on him
An idiomatic expression indicating a sudden realization.
he perceives
Suggests an understanding based on observation or sensory input.
he ascertains
Indicates discovering something with certainty through investigation.
FAQs
How can I use "he realises" in a sentence?
Use "he realises" to show a character or person coming to an understanding or awareness of something. For example, "He realises that his actions have consequences."
What are some alternatives to "he realises"?
You can use alternatives such as "he understands", "he becomes aware", or "he recognizes" depending on the context.
Is "he realises" the same as "he recognizes"?
While similar, "he realises" implies a moment of sudden understanding, whereas "he recognizes" suggests acknowledgement of something already known or previously encountered.
What's the difference between "he realises" and "he knew"?
"He knew" implies prior knowledge, while "he realises" indicates a new understanding being formed. The phrase "he realises" suggests a change in perception, while "he knew" implies a state of awareness that existed before.
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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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested