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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
keep on underlining
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "keep on underlining" is correct and usable in written English.
It can be used when instructing someone to continue emphasizing or marking text for clarity or importance. Example: "As you read through the document, keep on underlining the key points to help you remember them later."
✓ 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
1 human-written examples
Events keep on underlining the gap between the rhetoric and the reality.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
Taking the above into account, it's easy to picture flavour as this great, heaving, living, breathing mass of complex chemical reactions, underlining the cookery advice that chefs dole out time and again: keep on tasting.
News & Media
And keep on going".
News & Media
Child will keep on crying, keep on crying.
Science
They kept on going.
News & Media
Madrid kept on coming.
News & Media
Just kept on crying.
Science
Keep on keeping on.
News & Media
Per Mertesacker underlined how motivated they are to keep on improving: "In every single minute of the match we are desperate to win and we want to test ourselves again and again".
News & Media
Keep on, keep on.
News & Media
"Keep on your cell.
News & Media
Expert writing Tips
Best practice
When using "keep on underlining", ensure the context clearly indicates what is being emphasized and why it is important to continue highlighting it.
Common error
While grammatically correct, "keep on underlining" can sound slightly informal in certain contexts. Opt for more sophisticated alternatives like "continue to emphasize" or "repeatedly underscore" in formal writing.
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "keep on underlining" functions as a directive, instructing someone to continue emphasizing or highlighting specific parts of a text or idea. Ludwig AI confirms its grammatical correctness.
Frequent in
News & Media
30%
Science
30%
Wiki
15%
Less common in
Formal & Business
10%
Academia
5%
Reference
10%
Ludwig's WRAP-UP
In summary, the phrase "keep on underlining" is grammatically correct and functions as a directive to continue emphasizing something. While Ludwig AI indicates its correctness, its usage is relatively rare and may sound informal in certain formal contexts. Alternatives like "continue to emphasize" or "repeatedly underscore" might be more suitable for formal writing. The phrase is most commonly found in News & Media, Science, and Wiki articles. Ultimately, "keep on underlining" serves to reinforce the importance of specific information by encouraging continued emphasis.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
continue to emphasize
This phrase directly replaces "keep on" with "continue to", maintaining a similar level of formality and meaning.
keep emphasizing
A more direct and concise alternative, omitting "on" without significantly altering the meaning.
persist in highlighting
This phrase uses "persist" to suggest a determined continuation of the action, adding a sense of purpose.
repeatedly underscore
This alternative highlights the repetitive nature of the emphasis.
constantly stress
This phrase replaces underlining with a more general term for emphasizing, implying a verbal or written emphasis.
continue marking
Replaces "underlining" with the more general term "marking", which can include highlighting, circling, or other forms of notation.
always highlight
This version suggests a consistent and unwavering approach to highlighting.
maintain emphasis on
Focuses on the act of maintaining a certain level of importance or attention.
never stop stressing
This phrase adds a sense of urgency or importance to the act of emphasizing.
emphasize continuously
This swaps the order and emphasizes the adverb continuously for a slightly different feel.
FAQs
How can I use "keep on underlining" in a sentence?
You can use "keep on underlining" to instruct someone to continue highlighting key points in a text, for example, "As you read the report, "keep on underlining" the most important findings."
What does "keep on underlining" mean?
"Keep on underlining" means to continue to emphasize or highlight something, typically in writing, to draw attention to its importance.
Are there more formal alternatives to "keep on underlining"?
Yes, more formal alternatives include "continue to emphasize", "repeatedly underscore", or "persist in highlighting". These options may be more appropriate for academic or professional writing.
Is it correct to say "keep underlining" instead of "keep on underlining"?
Yes, "keep underlining" is also correct and often more concise. The addition of "on" doesn't significantly change the meaning but can sometimes add a slight emphasis on the continuation of the action.
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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
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested