Lesson 08.Verb Aspect (Perfective vs. Imperfective)

Lesson Goals

By the end of this lesson, you will be able to:

• Understand the two aspects of Serbian verbs: imperfective and perfective
• Recognize how aspect changes the meaning of tenses
• Identify aspect pairs and learn common formation patterns
• Use aspect correctly in the present, past, and future tenses

1. What is Verb Aspect?

Serbian verbs have two aspects:

1. Imperfective (nesvršeni vid) — focuses on the process, duration, or repetition of an action.
2. Perfective (svršeni vid) — focuses on the completion or result of an action.

2. Imperfective Aspect

• Describes actions in progress, repeated, or habitual.
• Can be used in all tenses.
• Has a true present tense (used for actions happening now).

Examples:

• Čitam knjigu. — I am reading a book.
• Svako jutro pijem kafu. — I drink coffee every morning.
• Juče sam radio ceo dan. — I was working all day yesterday.

3. Perfective Aspect

• Describes actions that are completed or achieve a result.
• Usually cannot be used in the present tense for ongoing actions — its “present” form refers to the future.

Examples:

• Pročitaću knjigu sutra. — I will finish reading the book tomorrow.
• Završio sam posao. — I finished the job.

4. Aspect Pairs

Most verbs come in pairs — one imperfective, one perfective.

They usually share the same root but differ by a prefix, suffix, or stem change.

5. Common Ways to Form Perfective Verbs

1. Adding a prefix:
• pisati → napisati
• raditi → uraditi
2. Changing the stem:
• učiti → naučiti
3. Using a different verb altogether:
• govoriti → reći (to speak → to say/tell)

6. Choosing the Right Aspect in Sentences

• If you want to emphasize the process or habit, use imperfective.
• If you want to emphasize completion or result, use perfective.

Examples:

• Učim srpski. — I am studying Serbian. (imperfective)
• Naučiću srpski. — I will learn Serbian. (perfective)

7. Aspect and Tense Combination Rules

8. Mini Dialogue (Grammar Focus)

Ana: Šta radiš?

(What are you doing?)

Marko: Čitam knjigu.

(I am reading a book.) — imperfective

Ana: Kada ćeš je pročitati?

(When will you finish reading it?) — perfective

Marko: Pročitaću je sutra.

(I will finish it tomorrow.) — perfective

9. Vocabulary for This Lesson

10. Practice

A. Choose the correct aspect:

1. I (will write) a letter tomorrow. → pisati / napisati
2. They (were working) all day yesterday. → raditi / uraditi

B. Make sentences:

3. Use imperfective for a habit.

4. Use perfective for a completed past action.