されてた

was being done, was ...-ed

→ 為る
され do + て Te-form (conjunctive form) + た Past tense
verb · informal, past tense Rare #25,671
was being done, was ...-ed A casual contraction of されていた; the exact English translation depends on the verb it follows.
JA: 私はみんなに尊敬されてた。
EN: I was respected by everyone.
Conjugation of 為る

トムのパーティーに招待されてたの?

Were you invited to Tom's party?

尊敬されてたよ

They were respected.

— グッバイ、レーニン! (2003)

とんでもない欠陥が放置されてた。

A terrible flaw had been left unaddressed.

俺たちは尾行されてた?

Were we being followed?

— ベイビー・ブローカー (2022)

支配者になれと教育されてた

I was raised to become a ruler.

— 最強のふたり (2011)

トムはメアリーの誕生日パーティーに招待されてた?

Was Tom invited to Mary's birthday party?