Learn Hardcore Turkish: Vazgeçmeyince sonuç kusursuz olmasa da yeterince iyiydi. - When we didn’t give up, the result, even if not flawless, was good enough.

The suffix -ince/-ınca/-unca/-ünce makes a verb into an adverbial clause meaning “when/whenever/once/if.” So vazgeçmeyince means “when/if (one) doesn’t give up,” setting the time/condition for the main clause.

How is vazgeçmeyince formed?

Breakdown: vazgeç-me-y-ince.

vazgeç-: “to give up”
-me-: negation “not”
-y-: buffer consonant (to avoid vowel clash)
-ince: “when/once” (front-vowel variant by harmony)

Who is the subject of vazgeçmeyince? It’s not stated.

It’s a generic/implicit subject: “when you/one/we don’t give up.” To make it explicit, you can say:

Sen vazgeçmeyince… (when you don’t give up)
Biz vazgeçmediğimizde… (when we don’t give up; using -dığımızda)

Could I use vazgeçmezsen instead?

Yes, but it changes the feel. Vazgeçmeyince is impersonal and descriptive (“when one doesn’t give up”), while vazgeçmezsen directly addresses “you” with a conditional (“if you don’t give up”). Choose based on whether you want a general observation or a direct condition.