Learn Turkish: Somut adımların zamanlaması henüz belli değil. - The timing of the concrete steps is not certain yet.

It goes through a few steps! We start with the noun zaman (time) and add the suffix -la to create the verb zamanlamak (to time / to schedule). Then, the suffix -ma turns it into the verbal noun zamanlama (timing). Finally, the -sı at the end is the possessive suffix linking it to the steps.

Why do we have the suffixes -ın on adımların and -sı on zamanlaması?

This forms a definite noun compound (a genitive-possessive construction). Adımlar takes the genitive suffix -ın to mean "of the steps", while zamanlama takes the possessive suffix -sı to mean "its timing". Together, adımların zamanlaması literally means "the timing of the steps".

Could I use emin değil here instead of belli değil?

No, because they have different focuses. Belli değil means the situation or fact itself is "unclear", "not fixed", or "not obvious". Emin değil means that a person is "not sure" or "not confident". Since a concept like "timing" cannot feel unsure, we must use belli değil.

Somut means "concrete". What is the Turkish word for "abstract"?