This is the 12739th most frequent Turkish word.
istediklerinde
"When they want."
Here, 'istediklerinde' again means 'whenever they want,' clarifying that the action of playing outside is contingent upon the children's desire to do so.
Çocuklar istediklerinde dışarıda oynayabilirler.
Children can play outside whenever they want.
In this example, 'istediklerinde' functions to allow the timing of the library study to be based on students' wishes, continuing the theme of conditionality tied to desire.
Öğrenciler istediklerinde kütüphanede çalışabilirler.
Students can study in the library whenever they want.
In this sentence, 'istediklerinde' is used to mean 'whenever they want,' indicating the conditional nature attached to the action of 'wanting' occurring in the context of the subject (friends).