Learn Italian: Lo scultore stava cercando qualcosa in questo bell'affresco classico? - Was the sculptor looking for something in this beautiful classical fresco?

The adjective bello changes its form depending on the noun it sits in front of, acting just like definite articles. Because affresco is a masculine singular noun starting with a vowel, bello drops its final -o and takes an apostrophe to become bell'.

Why does bell' come before the noun, but classico comes after it?

In Italian, most adjectives go right after the noun they describe, like classico does here. However, a small group of very common adjectives—including bello (beautiful), buono (good), and grande (big)—usually go in front of the noun.

What verb tense is stava cercando?

This is the past continuous, which translates to 'was looking'. It's built using the imperfect tense of stare (here, stava for 'he was') plus the gerund of the main verb, cercando (from cercare).

Why is there no Italian word for 'for' in cercando qualcosa ('looking for something')?

The verb cercare already means 'to look for' or 'to search for'. English speakers often try to add per (for) after it, but in Italian, you just connect the verb directly to the thing you are seeking without an extra preposition.