Breakdown of Servus medicamentum in cubiculo quaerit, sed id non invenit.
Questions & Answers about Servus medicamentum in cubiculo quaerit, sed id non invenit.
Medicamentum is accusative singular neuter, serving as the direct object of quaerit (he searches for / looks for).
The nominative and accusative are identical in many neuter nouns, so medicamentum looks the same in both cases; the role is shown by context and word order (and the subject servus being nominative).
Servus is nominative singular masculine, so it’s the subject: the slave/servant is doing the actions (quaerit, invenit).
In Latin, the subject is typically nominative, and the verb is 3rd person singular (he …).
Cubiculo is ablative singular because in + ablative generally indicates location where: in the room / in the bedroom.
(With in + accusative, you usually get motion into a place: in cubiculum = into the room.)