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Upon realizing

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "Upon realizing" is correct and usable in written English.
You can use it to indicate that an action or thought occurred after someone became aware of something. Example: "Upon realizing the mistake, she quickly corrected her report."

✓ Grammatically correct

News & Media

Science

Wiki

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Upon realizing that it was a funeral, several of the protesters burst into tears.

News & Media

The New Yorker

Upon realizing she was missing, Mr. Petrocelli began frantically throwing flotation devices into the water and called the Coast Guard.

News & Media

The New York Times

Upon realizing that this creature was not one of its own, the dog leapt backward in yelping horror, and Radar, aloof, continued on his walk.

News & Media

The New York Times

Upon realizing that the opening match was against Argentina, he lamented about American naïveté, saying, "We're too stupid to fix a draw".

Upon realizing that Cramblett might have been given the wrong sperm, a receptionist at the bank asked if she "had requested an African American donor".

News & Media

The New Yorker

Upon realizing that he had more than an hour's worth of fresh thoughts, he decided to simply drop the planned ones.

News & Media

The New Yorker

Upon realizing it was a Pat Buchanan Pat Buchanan hole, they tried to correct their mistake.

News & Media

Forbes

Upon realizing this, we started avoiding all vague probability terms and talking in actual percentages.

News & Media

TechCrunch

Upon realizing the shortcomings of TGLP, the government introduced the National Policy on Agricultural Development NPADD) in 1991.

Upon realizing the astounding price of the shoes, Everingham's wife ended up buying a similar-looking shoe in a store for half the cost.

News & Media

TechCrunch

Upon realizing the lack of diversity in science, Moore and Penn established the nonprofit organization Brothers Building Diversity in the Sciences (BBDS) in 2001, to inspire underrepresented minority students to pursue careers in the biomedical sciences.

Science & Research

Science Magazine
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Expert writing Tips

Best practice

Pay attention to the tense of the verb following "realizing". Consistency is important to accurately reflect the timing of the realization and subsequent action.

Common error

Avoid using "Upon realizing" in constructions where the subject is unclear or passive. Ensure the sentence clearly indicates who is doing the realizing. For example, instead of "Upon realizing a mistake was made...", write "Upon realizing they had made a mistake...".

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

82%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "Upon realizing" functions as a prepositional phrase introducing an adverbial clause of time. It modifies the main verb of the sentence, indicating when the action described by the main verb occurred. As Ludwig AI confirms, this phrase is grammatically correct.

Expression frequency: Very common

Frequent in

News & Media

40%

Wiki

20%

Science

20%

Less common in

Encyclopedias

5%

Formal & Business

5%

Reference

0%

Ludwig's WRAP-UP

In summary, "Upon realizing" is a grammatically correct and frequently used phrase that introduces an adverbial clause of time, indicating that an action or feeling directly followed a moment of understanding. Ludwig AI confirms its correctness. Its usage spans across various contexts, including news, science, and general writing, although it is less common in strictly formal or business settings. When writing with "Upon realizing", ensure the subject and tense are clear and consistent. While slightly formal, the phrase is generally appropriate for a broad audience and has many alternatives to fit the intended tone.

More alternative expressions(10)

Phrases that express similar concepts, ordered by semantic similarity:

Recognizing that

This alternative emphasizes the act of recognition or identification. It works well when the realization involves identifying something specific.

On understanding

Similar to "upon realizing", but slightly more formal and concise. It maintains the sense of immediacy.

After understanding

This alternative replaces "upon realizing" with a more direct and simple temporal conjunction. The focus shifts slightly to the sequence of events rather than the moment of realization.

When they understood

A more direct temporal clause, suitable for narrative contexts. This eliminates the preposition "upon" for a simpler sentence structure.

Now that they knew

This alternative focuses on the knowledge gained. It's suitable when the emphasis is on knowing a fact or piece of information.

Once it became clear

This version emphasizes the clarification or revelation of information, making it suitable when the realization involves understanding something previously unclear.

As soon as they grasped

Emphasizes the speed and immediacy of understanding. This is suitable when the realization is quick and decisive.

With the awareness that

This highlights the state of being aware as the foundation for action. It adds a layer of consciousness or intention.

Having understood

This uses a perfect participle to indicate a completed understanding before a subsequent action. This construction is more formal than "upon realizing".

In light of the understanding

This emphasizes the understanding as a context or condition for subsequent actions. This is more formal and analytical.

FAQs

How can I use "upon realizing" in a sentence?

"Upon realizing" introduces a clause explaining what someone understood, followed by what they did or felt as a result. Example: Upon realizing the danger, she ran away.

What can I say instead of "upon realizing"?

You can use alternatives like "after understanding", "once it became clear", or "recognizing that" depending on the context.

Is it more formal to say "upon realizing" or "after realizing"?

"Upon realizing" tends to be slightly more formal than "after realizing". The choice depends on the overall tone and style of your writing.

What's the difference between "upon realizing" and "upon understanding"?

While similar, "upon realizing" often implies a sudden awareness or recognition, whereas "upon understanding" /s/upon+understanding suggests a more gradual or comprehensive grasp of something. Both are suitable alternatives depending on the nuance you want to convey.

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Source & Trust

82%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: