1. The man must be married;
2. That he committed any of the following acts:
   a. Keeping a mistress in the conjugal dwelling,
   b. Having sexual intercourse under scandalous circumstances
      with a woman who is not his wife,
   c. Cohabiting with her in any other place;
3. That as regards the woman, she must know him to be married.

A married man is not liable for concubinage for mere sexual
relations with a woman not his wife.

CONJUGAL DWELLING means the home of the husband and wife
even if the wife happens to be temporarily absent on
any account.

SCANDAL consists in any reprehensible word/deed that offends
public conscience, redounds to the detriment of the feelings
of honest persons, and gives occasion to the neighbors’
spiritual damage and ruin.

COHABIT means to dwell together, in the manner of husband
and wife, for some period of time, as distinguished from
occasional, transient interviews for unlawful intercourse.

That woman must be taken into conjugal dwelling
as a concubine

People in the vicinity are the best witnesses to prove
scandalous circumstances

Adultery is more severely punished than concubinage.

The woman becomes liable only when she knew him to be
married prior to the commission of the crime.