i do know

USAGE SUMMARY

The phrase "I do know" is correct and usable in written English.
It can be used to emphasize certainty or knowledge about a particular subject or fact. Example: "I do know that the meeting is scheduled for 10 AM tomorrow."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

I do know that.

The New York Times - Sports

I do know Bliss.

The New Yorker

That I do know.

The New Yorker

BLANKENHORN: But I do know.

The New Yorker

Oh, yes, I do know.

The New York Times - Arts

I do know the answer..

The New Yorker

Here's what I do know.

The New York Times

I do know the details.

The New York Times

"I do know the guy.

The New Yorker

I do know such people.

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

1 human-written examples

"But I do know..

Los Angeles Times

Expert writing Tips

Best practice

Use "I do know" to add emphasis to your statement, especially when there might be doubt or disagreement. It's a way to reassure your audience that you are certain about what you are saying.

Common error

Avoid using "I do know" excessively in your writing, as it can make you sound defensive or insecure. Instead, vary your language with alternatives like "I am aware" or "I understand" for a more natural and confident tone.

Linguistic Context

The phrase "i do know" functions as an emphatic declarative statement. It is used to assert knowledge with added emphasis. Ludwig's examples illustrate its use in diverse contexts to underscore the speaker's certainty.

Expression frequency: Very common

Frequent in

News & Media

98%

Science

1%

Formal & Business

1%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "i do know" is a grammatically correct and very common phrase used to emphasize knowledge or understanding. Ludwig AI indicates that its primary function is to convey certainty, and it is commonly found in news and media sources. While versatile, overusing it can make your writing sound defensive, so vary your language by using alternatives such as "I am aware" or "I understand". Use "i do know" strategically to add emphasis and conviction to your statements.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

i am aware

This alternative uses a different verb and structure to convey the speaker's understanding.

i am cognizant

Replaces 'know' with a more formal synonym, suggesting a sophisticated awareness.

i am informed

Shifts the focus to having received information, implying knowledge.

i understand

Emphasizes comprehension rather than just awareness of a fact.

i realize

Implies a moment of understanding or realization.

i'm certain

Changes the focus to certainty, emphasizing confidence in the knowledge.

i'm sure

Expresses a degree of confidence, similar to 'certain'.

i have no doubt

Conveys a strong sense of certainty, negating any uncertainty.

i can confirm

Indicates the ability to verify or validate information.

it is my understanding

Frames the knowledge as a personal interpretation or comprehension.

FAQs

How to use "i do know" in a sentence?

You can use "i do know" to emphasize your knowledge or understanding of a particular fact or situation. For example: "I don't know all the details, but "I do know" that the meeting has been rescheduled."

What can I say instead of "i do know"?

You can use alternatives like "I am aware", "I understand", or "I am certain" depending on the context.

Is "i do know" formal or informal?

"I do know" is generally considered neutral in register, suitable for both formal and informal contexts, although it is typically used to add emphasis, and so might sound slightly out of place in very formal writing where directness is preferred.

When should I use "i do know" instead of just "i know"?

Use "i do know" when you want to emphasize your knowledge or understanding, especially in response to doubt or skepticism. It adds a level of certainty that "I know" alone might not convey.