estaban cohabitando
Imperfect progressive ellos/ellas/ustedes conjugation of cohabitar.

cohabitar

Es probable que aquellos que habían rechazado la moralidad religiosa (p.e. aquellos que estaban cohabitando) deseasen justificar su conducta diciendo que había muy poca verdad en cualquier religión.
It is likely that those who have rejected religious morality (i.e., those who were cohabiting) wanted to justify their behavior by saying that there was very little truth in any religion.
Word of the Day
leftovers