početi

In a sentence

• Počeo je raditi na novom projektu.

  He has started working on a new project.

  Here, 'počeo' is used to indicate the beginning of an action, 'raditi,' which is an infinitive verb that the subject has started performing.

• Kad ćeš početi učiti za ispit?

  When will you start studying for the exam?

  Here, 'početi' is used in its infinitive form in a question about initiating a future action 'učiti' (studying).

• Moraš početi razmišljati o svojim ciljevima.

  You need to start thinking about your goals.

  Here, 'početi' is used to emphasize the necessity of starting a mental process 'razmišljati' (thinking).