Learn Turkish: Çalıdaki kuş güzel ötebilir. - The bird in the bush might chirp beautifully.

The suffix -(y)abil combined with the aorist tense (the -ir at the very end) can express either ability ("is able to chirp") or possibility ("might chirp"). You usually rely on context to tell them apart. Here, we are making a guess about what the bird might do, which is why it translates to "might"!

Can you break down the word çalıdaki?

It is built from three parts: çalı (bush) + -da (locative suffix "in/at") + -ki (a suffix that roughly means "the one which is"). Together, çalıdaki acts as an adjective meaning "the one in the bush," which directly describes the bird (kuş).

The translation says "beautifully," but isn't güzel just the adjective "beautiful"?

Yes, but in Turkish, most adjectives can be used directly as adverbs without adding any extra suffixes (unlike adding "-ly" in English). Because güzel is placed directly in front of the verb ötebilir, it acts as an adverb describing how the bird might chirp.

Could I use the verb ötmek to say a person might sing beautifully?