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

that's when I realized
Grammar usage guide and real-world examples

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

And that's when I realized.

News & Media

The New York Times

That's when I realized.

News & Media

The New Yorker

That's when I realized this is it".

News & Media

The New York Times

That's when I realized I'm an idiot.

News & Media

The New York Times - Magazine

That's when I realized what had happened.

News & Media

The New York Times - Food

That's when I realized I'm not white.

News & Media

The New York Times

"That's when I realized we had to do more".

News & Media

The New Yorker

"That's when I realized what I wanted to do".

News & Media

The New York Times - Health

That's when I realized I'm not going through that".

News & Media

The New York Times

"That's when I realized I had won it," he said.

News & Media

The New York Times - Sports

That's when I realized that I wanted to play.

News & Media

The New York Times

Expert writing Tips

Best practice

Use "that's when I realized" to mark a clear turning point in your narrative, indicating a shift in understanding or perception.

Common error

Avoid using "that's when I realized" repeatedly within a short passage. Vary your sentence structure with alternatives like "it dawned on me" or "I then understood" to maintain reader engagement.

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

89%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The primary grammatical function of "that's when I realized" is to introduce a clause explaining a moment of sudden understanding or awareness. It serves as a discourse marker signaling a change in perspective. Ludwig provides numerous examples illustrating its use in narrative contexts.

Expression frequency: Very common

Frequent in

News & Media

79%

Huffington Post

13%

The New Yorker

Less common in

Formal & Business

Encyclopedias

Science

Ludwig's WRAP-UP

In summary, "that's when I realized" is a common and grammatically sound phrase used to introduce a moment of sudden understanding or awareness. According to Ludwig, this expression is frequently used in News & Media. While it maintains a neutral register suitable for various contexts, overuse should be avoided by incorporating alternatives to enhance writing quality. Given its widespread usage and the information available via Ludwig, this phrase is a valuable addition to one's linguistic toolkit.

More alternative expressions(10)

Phrases that express similar concepts, ordered by semantic similarity:

that's when it dawned on me

Emphasizes a sudden understanding or realization.

that's when I understood

Focuses on the comprehension aspect of the realization.

that's the moment I realized

Highlights the specific point in time when the realization occurred.

it was then I realized

Inverts the sentence structure for a slightly more formal tone.

that's when I became aware

Shifts the focus to becoming conscious or informed.

that's when I figured out

Suggests a process of working something out or solving a problem.

that's when I recognized

Emphasizes identifying or acknowledging something.

that's when it hit me

Implies a sudden and impactful realization.

that's when the penny dropped

An idiomatic expression for understanding something after a period of confusion.

that's when it became clear

Highlights the clarification of a situation or understanding.

FAQs

What does "that's when I realized" mean?

The phrase "that's when I realized" indicates a moment of understanding, awareness, or comprehension of something that was not previously clear. It highlights a turning point in thought or perception.

What can I say instead of "that's when I realized"?

You can use alternatives like "that's when it dawned on me", "that's when I understood", or "it was then I realized" depending on the context.

Is "that's when I realized" formal or informal?

"That's when I realized" is generally considered neutral and suitable for both informal and formal contexts, though more formal writing might benefit from alternatives like "it was at that point that I understood".

How to use "that's when I realized" in a sentence?

You can use "that's when I realized" to introduce a new understanding or a change in perspective, as in, "I thought I was prepared, but "that's when I realized" how much more work there was to do".

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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

89%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences:

1-200 1k 2k 3k 4k 5k 7k 10k 20k 40k 100k 200k 500k 0m-3 0m-4 1m-1 1m-2 1m-3 1m-4

that's when I realizedGrammar usage guide and real-world examples

that's when I realized
Grammar usage guide and real-world examples