This is the 7416th most frequent Turkish word.
gereken
Necessary; required.
Here, 'gereken' describes the materials required or necessary to complete the task, functioning as an adjective.
Bu işi bitirmek için gereken malzemeleri satın almamız gerekiyor.
We need to purchase the necessary materials to finish this task.
In this sentence, 'gereken' refers to the effort that is necessary or required for achieving success, serving as an adjective modifying 'çaba' (effort).
Başarılı olabilmek için gereken çabayı göstermelisin.
You must show the required effort to be successful.
Here, 'gereken' qualifies 'talimatlar' (instructions), indicating that the instructions are necessary for resolving the stated problem.