estaban

third-person plural imperfect indicative of estar

enterrados

• Adj

  masculine plural of enterrado

• Verb

en

1. in, at, on
2. in (a time)
3. in (a language)
4. used after some verbs and translated by various prepositions in English
5. in (in various expressions)

su

1. Apocopic form of suyo his, her, its, one's, their, your (formal)
2. Apocopic form of suyo his, her, its, one's, their, your (formal)
3. Apocopic form of suyo (“your”)

propiedad

1. propriety (fact of possessing something), proprietary
2. property, belongings, estate (something that is possessed especially a real estate)
3. ownership (state of possessing something)