Auxiliary verbs, or pomoćni glagoli, in Serbian grammar are used to form tenses, moods, and voices of other verbs. The main auxiliary verbs in Serbian are “biti” (to be), “jesam” (am), “jesi” (are), “jeste” (is), and “smo” (we are). These verbs are often used in various combinations to express different actions and states.
Exercise 1: Fill in the blank with the appropriate auxiliary verb in present tense.
1. “*Biti* or not biti, that is the question. (To be)
2. “Ja ne mogu da *budem* u dva mesta u isto vreme. (Be)
3. “Mi *smo* uvek srećni kad je lep dan. (We are)
4. “Ona *je* veoma lepa. (Is)
5. “Vi *ste* ljubazni, hvala vam. (You are)
6. “Ja *sam* tvoja mama. (I am)
7. “Oni nisu u stanju da *budu* iskreni. (Be)
8. “Ti *si* najbolji učenik. (You are)
9. “On *je* u parku. (He is)
10. “Mi nismo u mogućnosti da *budemo* tamo. (Be)
11. “Ja *sam* srećna što te vidim. (I am)
12. “Vi *ste* prijatelji. (You are)
13. “On *je* doktor. (He is)
14. “Mi *smo* gladni. (We are)
15. “Ona *je* spremna da ide. (She is)
2. “Ja ne mogu da *budem* u dva mesta u isto vreme. (Be)
3. “Mi *smo* uvek srećni kad je lep dan. (We are)
4. “Ona *je* veoma lepa. (Is)
5. “Vi *ste* ljubazni, hvala vam. (You are)
6. “Ja *sam* tvoja mama. (I am)
7. “Oni nisu u stanju da *budu* iskreni. (Be)
8. “Ti *si* najbolji učenik. (You are)
9. “On *je* u parku. (He is)
10. “Mi nismo u mogućnosti da *budemo* tamo. (Be)
11. “Ja *sam* srećna što te vidim. (I am)
12. “Vi *ste* prijatelji. (You are)
13. “On *je* doktor. (He is)
14. “Mi *smo* gladni. (We are)
15. “Ona *je* spremna da ide. (She is)
Exercise 2: Fill in the blank with the appropriate auxiliary verb in past tense.
1. “Ja *sam* bio tamo. (I was)
2. “Ti *si* bila jako brza. (You were)
3. “On je *bio* doktor. (He was)
4. “Mi *smo* bili gladni. (We were)
5. “Vi *ste* bili u parku. (You were)
6. “Oni *su* bili srećni. (They were)
7. “Ja *sam* bila kod kuće. (I was)
8. “Ti *si* bio u školi. (You were)
9. “Ona *je* bila u prodavnici. (She was)
10. “Mi *smo* bile na koncertu. (We were)
11. “Vi *ste* bili na plaži. (You were)
12. “Oni *su* bili na poslu. (They were)
13. “Ja *sam* bila u bioskopu. (I was)
14. “Ti *si* bio u teretani. (You were)
15. “On *je* bio u kafiću. (He was)
2. “Ti *si* bila jako brza. (You were)
3. “On je *bio* doktor. (He was)
4. “Mi *smo* bili gladni. (We were)
5. “Vi *ste* bili u parku. (You were)
6. “Oni *su* bili srećni. (They were)
7. “Ja *sam* bila kod kuće. (I was)
8. “Ti *si* bio u školi. (You were)
9. “Ona *je* bila u prodavnici. (She was)
10. “Mi *smo* bile na koncertu. (We were)
11. “Vi *ste* bili na plaži. (You were)
12. “Oni *su* bili na poslu. (They were)
13. “Ja *sam* bila u bioskopu. (I was)
14. “Ti *si* bio u teretani. (You were)
15. “On *je* bio u kafiću. (He was)
