izvršavati

1. (of tasks, duties) to carry out; to fulfil; to perform
   Ona uvek savesno izvršava svoje obaveze. — She always conscientiously carries out her duties.
   Vojnici izvršavaju naređenja bez pitanja. — Soldiers carry out orders without question.
2. (of crimes) to commit
   Ista grupa je godinama izvršavala pljačke po gradu. — The same gang committed robberies around the city for years.
3. (of a program, computer) to execute; to run
   Računar izvršava komande jednu za drugom. — The computer executes the commands one after another.

The perfective is izvršiti; it takes a direct object in the accusative (izvršavati zadatak).