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 underlined that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "I underlined that" is correct and usable in written English.
You can use it when referring to something you have emphasized or highlighted in a text for clarity or importance. Example: "In my report, I underlined that the deadline for submissions is next Friday to ensure everyone is aware."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(18)
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
4 human-written examples
"I underlined that we have no choice but to apply the rules of the treaty".
News & Media
I underlined that passage and showed it to my wife, Cree.
News & Media
She's spectacular as a woman, and I underlined that.
News & Media
I underlined that what seemed like a physical separation, like going to the movie, was more importantly an emotional separation that her daughter was experimenting with.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
And infrastructure, I underline that word because that's really what we're building is new highways for finance.
News & Media
I think unless it's very serious, a lot of the time women have learned or have been taught — and I underline that ― to laugh it off and to think to themselves, Well, it's not really that serious.
News & Media
I underline that these computations are principally sensitive with the ZnS external growth shell thickness.
"I underline that from the Montenegrin side, there is no ambiguity when we reach out our hand to Croatia with the conviction that we have put these difficult moments behind us," he said.
News & Media
But I underline that this is not only something that the Americans have to do.
News & Media
The taoiseach, Leo Varadkar, underlined that view on Thursday.
News & Media
His brace of neatly taken tries further underlined that point.
News & Media
Expert writing Tips
Best practice
Use "I underlined that" to emphasize key points in a summary or discussion, ensuring clarity and focus on the most important aspects of your message.
Common error
Avoid overusing phrases like "I underlined that" to highlight every point, as this can dilute the impact and make your writing seem repetitive and less persuasive. Reserve it for truly crucial information.
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "I underlined that" is to emphasize a point or statement that has already been made. As Ludwig AI confirms, this phrase is generally correct and serves to highlight key information for clarity.
Frequent in
News & Media
40%
Science
40%
Formal & Business
20%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "I underlined that" is a grammatically sound phrase used to emphasize a previously stated point. Though its frequency is rare, its appearance across news, scientific, and formal business contexts, according to Ludwig AI, demonstrates its versatility and correctness. When incorporating it into your writing, remember to use it judiciously to truly highlight critical information without causing repetition. Related phrases, like "I emphasized that" or "I highlighted that", can offer alternative ways to express emphasis.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
I emphasized that
Replaces 'underlined' with 'emphasized', conveying a strong focus on a particular point or aspect but with a slightly different nuance.
I highlighted that
Using 'highlighted' instead of 'underlined' suggests drawing attention to something, similar to marking it visually.
I stressed that
Substitute 'stressed' for 'underlined' to indicate the importance or urgency of a statement.
I pointed out that
Instead of 'underlined', 'pointed out' is used to bring attention to a detail or fact, often in a discussion or explanation.
I noted that
Changes 'underlined' to 'noted', implying a formal record or observation of a particular piece of information.
I asserted that
Replace 'underlined' with 'asserted', conveying a strong and confident declaration of a fact or belief.
I affirmed that
Using 'affirmed' in place of 'underlined' suggests confirming or validating a statement with conviction.
I declared that
Swapping 'underlined' for 'declared' implies a formal announcement or proclamation of a particular viewpoint.
I maintained that
Changing 'underlined' to 'maintained' expresses consistently holding a belief or position.
I reiterated that
Replaces 'underlined' with 'reiterated', indicating a repetition or restatement of a key point for emphasis.
FAQs
How can I use "I underlined that" in a sentence?
You can use "I underlined that" to emphasize a specific point or detail that you want the audience to focus on. For example, "I underlined that the deadline for submission is next Friday."
What are some alternatives to saying "I underlined that"?
You can use alternatives like "I emphasized that", "I highlighted that", or "I stressed that" to convey a similar meaning while varying your language.
Is it correct to say "I underlined that" in formal writing?
Yes, "I underlined that" is suitable for formal writing, but consider the context and tone. It's generally acceptable to use it when emphasizing key points. Alternatives like "I emphasized that" might be preferred in some highly formal situations.
What's the difference between "I underlined that" and "I want to underline that"?
"I underlined that" refers to something you have already emphasized or highlighted, while "I want to underline that" indicates your intention to emphasize something in the immediate context. The first is retrospective, the second is prospective.
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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
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested