иштирок кардан: to participate
Метавонӣ иштирок кунӣ.
You can participate.
Баҳром бо дӯстонаш дар мусобиқаи ҳоккей иштирок кард.
Bahrom participated in the hockey match with his friends.
You can participate.
Баҳром бо дӯстонаш дар мусобиқаи ҳоккей иштирок кард.
Bahrom participated in the hockey match with his friends.
Bonus:
Иштирок by itself means participation (a noun).
Combine ишторок with the very helpful suffix кунанда (one who does) to get иштироккунанда – one who participates, or the participant.