in full swing
US /ɪn fʊl swɪŋ/
UK /ɪn fʊl swɪŋ/

1.
in pieno svolgimento, a pieno ritmo
at the peak of activity or progress; fully active or operational
:
•
The party was in full swing by the time we arrived.
La festa era in pieno svolgimento quando siamo arrivati.
•
Construction on the new building is now in full swing.
La costruzione del nuovo edificio è ora in pieno svolgimento.