1. Input your text below.
2. Get it corrected in a few minutes by our editors.
3. Improve your English!

One of our experts will correct your English.

Our experts

1. Input your text below.
2. Get it corrected in a few minutes by our editors.
3. Improve your English!

One of our experts will correct your English.

Our experts

"I do not know" vs "i dont know"

Both "I don't know" and "I do not know" are correct phrases in English. The first one is more commonly used in informal situations, while the second one is more formal. The choice between them depends on the level of formality you want to convey.

Last Updated: March 22, 2024

I do not know

This phrase is correct and more formal than the contracted version.

This phrase is the full form of "I don't know" and is more commonly used in formal writing or when you want to sound more formal in speech.

Examples:

  • I do not know the answer to that question.
  • She said she does not know where he went.
  • They do not know the reason for the delay.
  • I do not know if I can attend the meeting.
  • He does not know why she left.

Alternatives:

  • I don't know
  • I am unaware
  • I have no knowledge
  • I am ignorant
  • I am uncertain

i dont know

This phrase is correct and commonly used in informal situations.

This phrase is a contraction of "I do not know" and is commonly used in spoken English and informal writing.

Examples:

  • I don't know what to do.
  • She said she doesn't know where he is.
  • They don't know how to solve the problem.
  • I don't know if I can make it to the party.
  • He doesn't know why she's upset.

Alternatives:

  • I do not know
  • I am not aware
  • I have no idea
  • I am clueless
  • I am uncertain

Related Comparisons

Why choose TextRanch?

Lowest prices
Up to 50% lower than other online editing sites.

Fastest Times
Our team of editors is working for you 24/7.

Qualified Editors
Native English experts for UK or US English.

Top Customer Service
We are here to help. Satisfaction guaranteed!