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I am an expert on vs I am an expert at

Both 'I am an expert on' and 'I am an expert at' are correct and commonly used in English. They are interchangeable in many contexts, but there are subtle differences in usage. 'I am an expert on' is often used when referring to a specific topic or subject, while 'I am an expert at' is more commonly used when referring to a skill or ability.

Last updated: March 28, 2024 • 2971 views

I am an expert on

This phrase is correct and commonly used in English.

This phrase is used when referring to a specific topic or subject that someone has expertise in.

Examples:

  • I am an expert on ancient history.
  • She is an expert on environmental sustainability.
  • He is an expert on digital marketing.

Alternatives:

  • I have expertise in
  • I specialize in

I am an expert at

This phrase is correct and commonly used in English.

This phrase is used when referring to a skill or ability that someone is proficient in.

Examples:

  • I am an expert at playing the piano.
  • She is an expert at public speaking.
  • He is an expert at problem-solving.

Alternatives:

  • I excel at
  • I am skilled at

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