at the conference
Era presente al convegno ieri.
He was present at the conference yesterday.
I'm going to the conference.
I will go to the conference.
Quante persone erano presenti al convegno?
How many people were present at the conference?
Partecipò al convegno come nostro rappresentante aziendale.
He attended the conference as our company representative.
È improbabile che Tom parteciperà al convegno.
It’s unlikely that Tom will attend the conference.