Bosnian verbs have imperfective (ongoing, repeated) and perfective (completed) aspects. Imperfective describes processes; perfective describes finished actions. Example: čitati (to read, imperfective) vs pročitati (to have read, perfective).
Why Bosnian has two verbs for almost every action – and how to choose between the "video" form and the "snapshot" form.
In English, you use helper words to change the nature of an action:
In Bosnian, the verb itself changes. Same idea, different verb:
Most verbs come in a pair: one focuses on the process (imperfective), and the other on the result (perfective).