Questions & Answers about Čim završim posao, odmah ću te pozvati.
Čim means as soon as.
It introduces a time clause:
- Čim završim posao = as soon as I finish work / the job
It usually suggests that the second action happens immediately after the first one.
Because Serbian uses the present tense of a perfective verb after time words like čim when talking about the future.
- završim = 1st person singular present of završiti, a perfective verb
- perfective = the action is seen as completed
So:
- Čim završim posao... literally looks like As soon as I finish the job...
- but it refers to a future completed action
Why not the others?
- završavam is imperfective, so it focuses more on the process or repeated action
- završiću is future tense, but after čim Serbian normally does not use future here
So Čim završim posao is the natural pattern.