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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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I know too

Grammar usage guide and real-world examples

USAGE SUMMARY

"I know too" is a perfectly correct and usable phrase in written English.
You can use it to agree with someone else's statement. For example: A: "I think we should go to the beach this weekend." B: "I know too. It will be great to get out of the house."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

"I know too much.

News & Media

The New Yorker

I know too many dead.

News & Media

The Economist

(I know, too much information).

News & Media

The New York Times

I know too much, somehow.

News & Media

The New York Times

Bernard: Now I know too.

News & Media

The Guardian

I know, too, that we will always remain close.

News & Media

The New York Times

Like most readers, I know too much about New York.

"I know too much about what really happened.

News & Media

The Guardian

I wouldn't make that film now, I know too much.

I know, too, that I must keep these feelings to myself.

News & Media

The New Yorker

I want to start writing before I know too much about the truth.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

Use "I know too" to express agreement or shared knowledge concisely. It's particularly effective in informal conversations or when you want to quickly affirm something someone else has said.

Common error

Avoid using "I know too" as a standalone sentence when a more specific response is needed. For example, instead of just saying "I know too", provide additional context or explanation to clarify your understanding or agreement.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

93%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "I know too" primarily functions as an elliptical clause, indicating agreement or shared knowledge with a previous statement. Ludwig examples demonstrate its use in affirming information already presented, similar to saying "I agree" or "I am also aware of that". Ludwig AI confirms its grammatically correct and usable nature.

Expression frequency: Very common

Frequent in

News & Media

100%

Less common in

Formal & Business

0%

Science

0%

Academia

0%

Ludwig's WRAP-UP

In summary, the phrase "I know too" is a grammatically sound and frequently used expression to convey agreement or shared knowledge. Ludwig AI confirms its correct usage. Predominantly found in news and media sources, it serves to affirm information or experiences, making it a versatile tool in both casual and professional communication. While direct, it is important to consider the context and ensure that the succinctness of "I know too" is adequate for the conversation. Alternatives like "I also know" or "I am aware too" offer slight nuances, broadening its applicability. Overall, "I know too" remains a reliable and common way to express concurrence.

FAQs

How can I use "I know too" in a sentence?

Use "I know too" to indicate that you share the same knowledge or understanding as someone else. For example, if someone says "It's going to rain today", you can reply with "I know too" to show that you are also aware of the weather forecast.

What's the difference between "I know too" and "I also know"?

"I know too" is generally used as a short affirmation, implying agreement. "I also know" is broader, suggesting additional knowledge. If someone said "I know it's going to be cold tomorrow" and you reply with "I also know, it implies you have even more related information.

When is it appropriate to use "I know too"?

It's appropriate in informal settings, conversations, or quick affirmations. Avoid using it in formal writing or when a more detailed explanation is required. For example, you can use "I know too" during a discussion with friends but should choose something different during a business presentation.

Are there any synonyms for "I know too" that I can use?

Yes, you can use phrases like "I am aware too", "I understand too", or "I realize that as well" depending on the specific context and nuance you want to convey.

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Source & Trust

93%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: