隠れてた

was hiding, had been hiding

→ 隠れる
隠れ hide, be hidden + Te-form (conjunctive) + Past tense
verb · past indicative Rare #28,596
was hiding, had been hiding
JA: 猫が机の下に隠れてた。
EN: The cat was hiding under the desk.
Conjugation of 隠れる
Indicative past
隠れてた

隠れてたのか

Were you hiding?

— 恋する惑星 (1994)

ドアの後ろに隠れてた

I was hiding behind the door.

— レベッカ (1940)

こんな所に隠れてたのね

So this is where you've been hiding.

— 動くな、死ね、甦れ! (1990)

半年隠れてたんだ

You’d been hiding for half a year.

— ロシアン・ブラザー (1997)

隠れてた

You were hiding!

— 天空の城ラピュタ (1986)

あの子どこに隠れてた

Where was that kid hiding?

— 海の上のピアニスト (1998)

三週間ずっとここに隠れてたんだ

I've been hiding here for three weeks.

— ライフ・イズ・ビューティフル (1997)