いたらしい

apparently was, seems to have been

→ 居る
い be; be present + た Past tense + らしい Apparently / hearsay
auxiliary · formal Rare #45,512
apparently was, seems to have been Used to express that something was apparently the case, based on what the speaker has heard or inferred. With an action verb, it can mean “apparently was doing” or “apparently had done.”
JA: 彼は昨日ここにいたらしい。
EN: Apparently, he was here yesterday.
Conjugation of 居る

彼は真実を知っていたらしい。

Apparently, he knew the truth.

その知らせは間違っていたらしい。

That news turned out to be wrong.

時々していたらしい

Apparently, they used to do it sometimes.

— オッペンハイマー (2023)

最初は父が喫茶店をやっていたらしいが―僕にはほとんどその記憶がない

Apparently, my father ran a coffee shop at first—but I barely remember it.

— Departures (2008)