Learn Turkish: Sınavdan önce komisyon sizi bekliyor. - Before the test, the committee is waiting for you.

To say 'before a noun' in Turkish, the noun must take the ablative case (-dan, -den, -tan, or -ten). This means 'before the exam' becomes sınavdan önce. The exact same rule applies to sonra (after), such as in sınavdan sonra (after the exam).

English says 'waiting for you'. Why doesn't Turkish use için (for) here?

In English, you wait for someone, but in Turkish, the verb beklemek (to wait) takes a direct object rather than a preposition. Because you are the direct object of the waiting, the pronoun takes the accusative case. That is why it is sizi instead of sizin için.

The root of the verb is bekle-, so why is it spelled bekliyor instead of bekleyor?

When adding the present continuous suffix -iyor to a verb that ends in a wide vowel (a or e), that final vowel drops or narrows to match the suffix. Here, the e at the end of bekle- changes to i, resulting in bekliyor.

Could I put sınavdan önce later in the sentence?