Learn Turkish: Müteahhitler inşaatta denetimin eksik olduğunu itiraf etmiş. - The contractors reportedly confessed that the inspection is missing at the construction.

Since eksik (missing) is an adjective, we need the helper verb olmak (to be) to form a "that" clause. We use the participle form olduk, add the 3rd person possessive suffix -u to match the subject of the clause, and finally add the accusative case -nu because the whole clause is the direct object of the main verb.

Why is denetim (inspection) in the genitive case as denetimin?

In Turkish complement clauses using -dık, the subject of the embedded clause must take the genitive case. Literally, this translates to "the inspection's being missing." Therefore, denetim takes the genitive suffix -in, which logically pairs with the possessive suffix on olduğunu.

Why does the complement clause end with the accusative marker in olduğunu?

The main verb itiraf etmek (to confess) requires a direct object because you confess something. Here, that something is the entire clause about the missing inspection. The final -u (after the buffer -n-) is the accusative case marking this clause as the direct object of the confession.

Why use the reported past tense etmiş instead of the direct past etti?

Using the -miş suffix indicates that the speaker did not personally witness the contractors' confession. They likely heard about it on the news, read it in a report, or were told by a third party. The English translation includes the word "reportedly" to accurately capture this evidential nuance.