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i dont know vs I do not 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: April 15, 2024 • 1173 views

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.

Show examples from the web [+]

Sep 11, 2021 ... Im copper 4, shit at the game, the main reason is, i dont know what to do... most of the time i dont even see the enemy, how am i supposed ...
Feb 8, 2021 ... Something on my pc is blocking ads, but i dont know what ... i have checked windows security and I don't think anything is blocking the ads. this ...
Apr 10, 2021 ... I like dont starve but i dont know what to do , so i stop playing. Vanilla. I got dont starve recently and i like the game , but 90% of the ...
Jun 21, 2020 ... The account has not been used in a long time so if anyone can help me recover this email (no phone number and i dont know what name i put) I ...

Alternatives:

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

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.

Show examples from the web [+]

"Looks familiar, but I do not know who she is": The role of the anterior right temporal lobe in famous face recognition. Cortex. 2019 Jun;115:72-85. doi: ...
In written language it is more formal to use "I do not know". 3 years ago. Profile image. Jason. Usually people say I don' ...
How do I judge my outcome when I do not know the outcome of others? The psychology of the fair process effect. J Pers Soc Psychol. 1997 May;72(5):1034-46.
I do not know where they have laid Him ... Nothing but Jesus fills my inner being. Oh! Where's my Love? — thank You Lord Jesus for creating us with our deepest ...
Oct 20, 2018 ... Package pgfkeys Error: I do not know the key '/tikz/show background rectangle ' and I am going to ignore it. Perhaps you misspelled it.
Contents · I do not know why oft 'round me · Representative Text · Author: Lida Shivers Leech · Text Information · Tune · Timeline · Media.

Alternatives:

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

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