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"who is knocking at the door" vs "Who is knocking the door"

Both phrases are correct, but 'who is knocking at the door?' is more commonly used in English. The preposition 'at' is typically used with the word 'door' to indicate the location of the knocking action.

Last Updated: March 22, 2024

who is knocking at the door

This phrase is correct and commonly used in English. The preposition 'at' is used to indicate the location of the knocking action.

This phrase is the correct way to inquire about the person who is knocking on a door.

Examples:

  • Who is knocking at the door at this hour?
  • I wonder who is knocking at the door.
  • Can you check who is knocking at the door?
  • Who is knocking at the door so loudly?
  • Who is knocking at the door in the middle of the night?

Alternatives:

  • who is knocking on the door?
  • who is at the door knocking?
  • who is at the door?
  • who is outside the door knocking?
  • who is outside knocking?

Who is knocking the door

This phrase is not correct in English. The preposition 'at' is needed to indicate the location of the knocking action.

This phrase should be corrected to 'who is knocking at the door?' to be grammatically accurate.

Alternatives:

  • who is knocking at the door?

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