We can use a to-infinitive after a superlative adjective, with a meaning similar to a relative clause with who, which or that:

Who was the oldest person to compete in the London Marathon of 2008? (Who was the oldest person who competed …?) From Cambridge Grammar

Can competing be used instead of to compete here? If so, what's the difference between them?

  • ...who competed, ...to compete, ...competing... I don't hear any difference among the three, for a past event. For a future event, only the latter two are valid. Sep 27, 2023 at 9:49
  • The marked infintive to compete feels more abstract to me than competing. Sep 27, 2023 at 12:48


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