Kostümler hazır olduğu sürece koreografiyi bugün deneyebiliriz.

As long as the costumes are ready, we can try out the choreography today.

Breakdown of Kostümler hazır olduğu sürece koreografiyi bugün deneyebiliriz.

• bugün: today
• hazır: ready
• denemek: to try out
• kostüm: a theatrical costume

Questions & Answers about Kostümler hazır olduğu sürece koreografiyi bugün deneyebiliriz.

What does olduğu sürece mean here?

-DIği sürece is a common Turkish pattern meaning as long as, so long as, or provided that.

So here:

• hazır olduğu sürece = as long as it/they are ready

It comes from olmak (to be) and is best learned as a chunk:

• X olduğu sürece = as long as X is

Why is it olduğu and not oldukları, since kostümler is plural?

This is a very common question. In Turkish, third-person forms inside this kind of subordinate structure are often left in a singular-looking form, especially when the subject is an inanimate plural noun like kostümler (costumes).

So kostümler hazır olduğu sürece is natural and correct.

You may sometimes also see fuller plural agreement in other contexts, but the version in this sentence is completely normal.

Why isn’t there a separate word like their before olduğu?

Turkish does not need a separate word like English their here. The structure itself already links the idea together.

So:

• kostümler hazır olduğu sürece = as long as the costumes are ready

Even though English uses a separate possessive-like idea in explanations, Turkish usually just builds it into the clause pattern.