If two people are not married but live in the same house and have a sexual relationship, you can say that they ~.
The couple had been living together for 16 years.
PHRASAL VERB: V P
If two people are not married but live in the same house and have a sexual relationship, you can say that they ~.
The couple had been living together for 16 years.
PHRASAL VERB: V P
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012