Yapabilirlerdi

"Yapabilirlerdi" is a Turkish verb form. It is the third-person plural conditional past tense of the verb "yapmak," which means "to do" or "to make." The suffix "-abilir" indicates possibility or ability, and the "-lerdi" suffix signifies the conditional past tense, implying an action that could have been done in the past under certain circumstances, but was not necessarily realized.

Therefore, "yapabilirlerdi" translates to "they could have done" or "they would have been able to do." This grammatical construction is used to express hypothetical situations or unfulfilled possibilities in the past. For instance, one might say, "Eğer zamanları olsaydı, o projeyi yapabilirlerdi," meaning "If they had time, they could have done that project." The form highlights a potential action that remained unrealized due to a preceding condition.