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Did not know vs Didn't know

Both "did not know" and "didn't know" are correct, but "didn't know" is more commonly used in spoken and informal written English. Both phrases have the same meaning, but the contraction "didn't know" is more concise and natural in everyday conversation.

Last updated: March 15, 2024 • 1136 views

Did not know

This phrase is grammatically correct but less commonly used in everyday conversation.

This phrase is the full form of the negative past tense of the verb "know." It is more formal and less common in spoken English.

Alternatives:

  • was not aware
  • had no idea
  • was uninformed

Didn't know

This phrase is the contraction of "did not know" and is more commonly used in spoken and informal written English.

This phrase is the contracted form of the negative past tense of the verb "know." It is more informal and commonly used in everyday conversation.
  • Didn't know it was a Comley truck.
  • Didn't know the shooter was wearing a vest.
  • Didn't know how he got there.
  • Didn't know why they were chasing him.
  • Didn't know there were stars in seoul.
  • Didn't know you were on the dole.
  • Didn't know you liked the show.
  • Didn't know she was leaving.
  • Didn't know you'd walk so soon.
  • Didn't know the gas was on and boom.
  • Didn't know Freck had a real name.
  • Didn't know you were with us.
  • Didn't know we had a king.
  • Didn't know he had any real friends.
  • Didn't know that kind of magic existed.
  • Didn't know if she was living or dead.
  • Didn't know you were here.
  • Didn't know there was a word for that.
  • Didn't know you had a shower there.
  • Didn't know who it was at first.

Alternatives:

  • wasn't aware
  • hadn't known
  • didn't realize

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