I know that when

USAGE SUMMARY

The phrase "I know that when" is correct and usable in written English.
You can use it to express awareness or certainty about a specific condition or situation occurring at a certain time. Example: "I know that when the sun sets, the temperature drops significantly."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

"I know that when I get on base," Reyes said.

The New York Times - Sports

"I know that when I die, you'll dance on my grave," he remembers his mother saying.

The New York Times

I know that when I look around this room in Mitchell, at the cardboard boxes.

The Guardian

I know that when Billy goes out to talk to an umpire.

The New York Times

I know that when I'm at my best, I'm hard to beat".

The New York Times

Because I know that when he's committed, he's going to do everything he can to make that happen.

The New York Times

I know that when I go on court I can beat almost everybody, even on the big stage".

Independent

But I know that when I do get through to them, out in Canton, they're going to want to know".

The New Yorker

I know that when me and Victor came in, we didn't know everything and we still don't.

The New York Times - Sports

"Because I know that when a people leaves its land, its home, it has no choice but to assimilate.

The New York Times

I know that when I see pictures of her wedding posted on Facebook, I'll be happy for her".

The New York Times

Expert writing Tips

Best practice

When using "I know that when", ensure the 'when' clause is followed by a clear and predictable outcome. This reinforces the sense of certainty you're conveying.

Common error

Avoid beginning multiple sentences or paragraphs with "I know that when" as it can make your writing sound repetitive. Vary your sentence structure to maintain reader engagement.

Linguistic Context

The phrase "I know that when" functions as a conjunctional phrase, connecting a statement of personal certainty ("I know that") with a conditional clause introduced by "when". Ludwig AI confirms its proper usage in expressing a confident anticipation or understanding of events.

Expression frequency: Very common

Frequent in

News & Media

98%

Formal & Business

1%

Science

1%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

The phrase "I know that when" is a common and grammatically correct conjunctional phrase used to express certainty about a particular outcome under specific conditions. Ludwig AI analysis confirms its proper usage and prevalence, particularly in news and media contexts. While versatile, it's important to use it judiciously to avoid repetition and to ensure the 'when' clause leads to a clear and predictable result. Alternatives like "I understand that when" or "I'm aware that when" can provide variety while maintaining a similar meaning. This phrase conveys a sense of personal conviction based on experience or observation.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

I understand that when

Replaces "know" with "understand", implying comprehension rather than just knowledge.

I'm aware that when

Substitutes "know" with "aware", suggesting consciousness of a fact or situation.

It's my understanding that when

Adds a layer of formality by explicitly stating it as one's understanding.

I've realized that when

Replaces "know" with "realized", showing a discovery or awareness gained over time.

I've come to know that when

Emphasizes the process of learning or becoming aware over time.

I have learned that when

Similar to 'come to know', but focuses on the acquisition of knowledge through experience or study.

I've noticed that when

Replaces 'know' with 'noticed', focusing on observation rather than knowledge.

I find that when

Suggests that knowledge comes from personal experience or observation.

I can confirm that when

Adds a tone of authority and validation to the statement.

I am certain that when

Emphasizes a feeling of complete assurance about the subsequent event.

FAQs

How can I rephrase "I know that when" to sound more formal?

For a more formal tone, consider using phrases such as "It is my understanding that when", "I am aware that when", or "I have observed that when" depending on the specific context.

Is it correct to say "I know when" instead of "I know that when"?

While "I know when" is grammatically correct, adding "that" can provide more clarity, especially when followed by a longer or more complex clause. However, "I know when" often implies knowing the specific time or circumstance, so ensure the context aligns with your intended meaning.

What's the difference between "I think that when" and "I know that when"?

"I think that when" implies an opinion or belief, while "I know that when" expresses certainty based on experience or evidence. Use "I think that when" when you're expressing a personal belief and "I know that when" when you're stating something you're sure about.

What are some alternatives to "I know that when" for expressing a learned behavior?

Alternatives for expressing learned behavior could be "I've learned that when", "I've come to know that when", or "Experience has taught me that when". These options emphasize the process of acquiring knowledge over time.