He occupied the apartment on 09-10-2021.
He shifted to the apartment on 09-10-2021.
The first is more natural, but the date is ambiguous. To British English speakers it means 9th October. To American English speakers it means September 10th.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
The first is more natural, but the date is ambiguous.
To British English speakers it means 9th October.
To American English speakers it means September 10th.
'shifted' is completely unnatural to this speaker of American English.
'occupied' is fine. 'moved' or 'moved in' are also OK.
CJ