commentating

/K AA1 M AH0 N T EY0 T IH0 NG/
verb
  1. 1

    To provide a commentary; to act as a commentator; to maintain a stream of comments about some event.

    โ€œFor the radio audience he will commentate on the match.โ€

Source: https://en.wiktionary.org/wiki/commentate, https://en.wiktionary.org/wiki/commentating