Learn Hardcore Turkish: Toplantıya katılım göstermek için herkes orada olmalı. - Everyone should be there to show participation at the meeting.

Toplantı means meeting, and the suffix -ya is the dative case marker which indicates direction or purpose—essentially meaning "to the meeting."

How does the phrase katılım göstermek için convey purpose in this sentence?

The expression katılım göstermek literally means "to show participation"—a formal way of saying "to attend" or "to participate." The word için means "for" or "in order to," so when combined, katılım göstermek için clearly sets the purpose for the action that follows.

What is the function of herkes in this sentence, and does it require any additional inflection?

Herkes translates to "everyone." It is used as the subject in its basic, uninflected (nominative) form. In Turkish, pronouns like herkes do not need further inflection when acting as the subject, regardless of the sentence structure.

How does the modal form olmalı work to express obligation here?

Olmalı is derived from the verb olmak (to be) combined with the necessity suffix -malı, which creates a modal form expressing obligation or necessity. It is equivalent to saying "must be" (or sometimes "should be") in English, indicating that everyone is expected to be present.