Learn Turkish: Bu bedensel angarya sadece ağır kutuları taşımaktan ibarettir. - This physical drudgery consists solely of carrying heavy boxes.

The word ibaret (meaning "consisting of") grammatically requires the preceding noun or verbal noun to be in the ablative case (-den/-dan). Instead of using a genitive like the English "of", Turkish expresses this as "consisting from carrying" (taşımaktan ibaret).

Why is kutuları in the accusative case if the English translation just says "heavy boxes"?

Using the accusative suffix in kutuları makes the boxes specific as the direct object of taşımaktan. It implies "carrying the heavy boxes" (the specific ones assigned for this job). If it were a completely general, undefined category of work, it would likely be stripped of the accusative as ağır kutu taşımaktan.

What does the -tir suffix do at the end of ibarettir?

The -tir (or -dir) suffix acts as a generalizing or factual copula ("is"). While you can drop it in casual speech and just say ibaret, adding it makes the sentence sound like a definitive, objective statement or a written fact, which is very common in B2-level reading.

How is the adjective bedensel formed?