事務所にいる

be in the office

→ 事務所
phrase Rare #20,576
be in the office 事務所 means “office,” and にいる means “be in” or “be located in.” The phrase can refer to someone being at their workplace or in an office building.
JA: 彼は今、事務所にいる。
EN: He is in the office now.

もしが無いのなら彼は事務所にいるはずがない

If his car isn't there, he can't be in the office.

まだ事務所にいる

Are you still at the office?

トムはまだ事務所にいる

Is Tom still at the office?

彼はいつも午前中事務所にいるとは限らない

He isn't always in the office in the morning.

トム事務所にいる

Is Tom in the office?