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knee is stiff vs knees are stiff

Both phrases are correct, but they are used in different contexts. "Knee is stiff" refers to a single knee being stiff, while "knees are stiff" indicates that both knees are stiff. The choice between the singular and plural form depends on whether you are talking about one knee or both knees.

Last updated: March 21, 2024

knee is stiff

This phrase is correct when referring to a single knee that is stiff.

Use this phrase when you want to indicate that only one knee is stiff.

Examples:

  • My knee is stiff after the long hike.
  • Her knee is stiff from the injury.

Alternatives:

  • My knee feels stiff.
  • The knee is stiff.
  • One knee is stiff.
  • A knee is stiff.
  • The left knee is stiff.

knees are stiff

This phrase is correct when referring to both knees being stiff.

Use this phrase when you want to indicate that both knees are stiff.

Examples:

  • My knees are stiff from sitting too long.
  • After the workout, his knees are stiff.

Alternatives:

  • Both knees are stiff.
  • Our knees are stiff.
  • The knees are stiff.
  • His knees feel stiff.
  • Their knees are stiff.

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