彼氏がいる

have a boyfriend

→ 彼氏
phrase Rare #32,192
have a boyfriend Literally means “a boyfriend exists,” and is the usual Japanese way to say that someone has a boyfriend or is dating someone.
JA: 彼女には彼氏がいる。
EN: She has a boyfriend.

彼氏がいる

I have a boyfriend.

— シティ・オブ・ゴッド (2002)

彼氏がいるって知ってた

I knew you had a boyfriend.

彼氏がいるなんて、知らなかった

I had no idea you had a boyfriend.

彼氏がいるって思ってた

I thought you had a boyfriend.

彼氏がいるって知ってる

I know you have a boyfriend.