バーにいた

was at the bar

→ バー
phrase Rare #29,285
was at the bar Uses いた, the past form of いる, to say that someone or something was at a bar. The subject is often understood from context.
JA: 昨日の夜、友達はバーにいた。
EN: My friend was at the bar last night.

その夜二人はいくつかのバーにいた

That night, the two of them were at several bars.

— ミスティック・リバー (2003)

トムバーにいた

Tom was at the bar.

トムならバーにいた

Tom was at the bar.

バーにいた

The person who was at the bar

— ミスティック・リバー (2003)