Learn Turkish: Aksaklığı çözülen sistem yeniden çalışıyor. - The system whose glitch was resolved is working again.

Turkish doesn't have a single word for "whose." Instead, it uses a possessive relative clause. First, we take the possessed thing and give it a possessive suffix: aksaklık becomes aksaklığı (its glitch). Then, we use the -(y)An relative participle on the verb: çözülen (that was resolved). Placed before the main noun (sistem), aksaklığı çözülen sistem literally means "the system that its glitch was resolved," which translates smoothly to "the system whose glitch was resolved."

Why is the letter "ğ" used in aksaklığı?

The root word for "glitch" or "malfunction" is aksaklık. Because we need to say "its glitch" to form the "whose" construction, we add the 3rd-person possessive suffix -ı. Adding a vowel suffix to a word ending in k causes consonant mutation, softening the k into ğ.

Why do we use çözülen instead of çözen here?

The verb çözmek means "to resolve" or "to solve." If we used çözen, it would be active: "the glitch that resolved (something)." Because the glitch didn't fix itself, we must use the passive voice. We add the passive suffix -Il to get çözülmek (to be resolved), and then attach the -en participle to get çözülen (that was resolved).

Could I say tekrar instead of in this sentence?