B1 · 中級 チャプター 34

Verbal Aspect: The Great Divide

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このチャプターのルール クイック練習

Chapter in 30 Seconds

Master the heart of Slavic grammar by distinguishing between ongoing processes and completed achievements.

  • Recognize verbs that describe ongoing or habitual actions.
  • Identify verbs that signal a finished, one-time event.
  • Use common prefixes to transform verbs and shift their aspect.
Process vs. Product: The Slavic Verb Rhythm.

学べること

The core of Slavic verbs. Learn the difference between Imperfective (ongoing) and Perfective (completed) actions.

Learning Objectives

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

  1. 1
    By the end you will be able to: correctly distinguish between imperfective and perfective verbs in a written narrative.

ヒントとコツ (2)

💡

Look for pairs

Always learn verbs in pairs (imperfective/perfective).
frontend.learn_grammar.from_rule: Identifying Imperfective Verbs
💡

Look for the prefix

When you see a verb, check if it has a prefix. If yes, it's likely perfective.
frontend.learn_grammar.from_rule: Common Aspectual Prefixes

重要な語彙 (5)

čitati to read (imperfective) pročitati to read through/finish (perfective) raditi to work/do (imperfective) uraditi to finish doing (perfective) trajati to last (imperfective)

Real-World Preview

calendar

Planning the Day

Review Summary

  • Process/Habit
  • Result/Moment
  • Prefix + Verb

よくある間違い

If you finish the book today, you must use the perfective aspect. The future tense with an imperfective verb implies a process, not a completed task.

Wrong: Ja ću čitati knjigu danas.
正解: Ja ću pročitati knjigu danas.

Habitual actions ('every week') require the imperfective aspect. Using the perfective here implies he finished the homework once, which contradicts 'every week'.

Wrong: On je uradio domaći svake nedelje.
正解: On je radio domaći svake nedelje.

The prefix 'na-' in 'napisati' already encompasses the act of finishing. You don't need to add 'završio' redundantly.

Wrong: Ja sam pisao pismo i završio ga.
正解: Ja sam napisao pismo.

Next Steps

You have mastered the most challenging part of Slavic grammar. Take a break, you earned it!

Listen to a Serbian podcast and note down 5 verbs you hear, identifying their aspect.

Continue to: The Instrumental Case: Tools and Company

クイック練習 (10)

Choose the correct aspect.

Sutra ću ___ (napisati/pisati) mejl.

✓ Correct! ✗ Not quite. Correct answer: napisati
Future completed action.

frontend.learn_grammar.from_rule: Identifying Perfective Verbs

Select the right verb.

Ona ___ (spavati) kada sam došao.

✓ Correct! ✗ Not quite. Correct answer: je spavala
Ongoing past action.

frontend.learn_grammar.from_rule: Identifying Imperfective Verbs

Choose the correct aspect.

Sada ___ (raditi/uraditi) posao.

✓ Correct! ✗ Not quite. Correct answer: radim
Ongoing action.

frontend.learn_grammar.from_rule: Common Aspectual Prefixes

Fill in the correct perfective verb.

Ja sam ___ (napisati) pismo.

✓ Correct! ✗ Not quite. Correct answer: napisao
Past perfective.

frontend.learn_grammar.from_rule: Common Aspectual Prefixes

Complete the sentence.

Dok sam ___ (raditi), telefon je zazvonio.

✓ Correct! ✗ Not quite. Correct answer: radio
Ongoing action.

frontend.learn_grammar.from_rule: Identifying Imperfective Verbs

Choose the correct aspect.

Svaki dan ___ (ići) u školu.

✓ Correct! ✗ Not quite. Correct answer: idem
Habitual action.

frontend.learn_grammar.from_rule: Identifying Imperfective Verbs

Fill in the blank.

Nisam ___ (videti) ga.

✓ Correct! ✗ Not quite. Correct answer: video
Past negative.

frontend.learn_grammar.from_rule: Identifying Perfective Verbs

Fix the sentence.

Find and fix the mistake:

Ja sam pročitao knjigu svaki dan.

✓ Correct! ✗ Not quite. Correct answer: Ja sam čitao knjigu svaki dan.
Habitual past.

frontend.learn_grammar.from_rule: Identifying Imperfective Verbs

Find the error.

Find and fix the mistake:

Uvek sam pročitao knjigu.

✓ Correct! ✗ Not quite. Correct answer: Uvek sam čitao
Habitual action.

frontend.learn_grammar.from_rule: Identifying Perfective Verbs

Fill in the correct form.

Ja ___ (čitati) knjigu.

✓ Correct! ✗ Not quite. Correct answer: čitam
Present tense imperfective.

frontend.learn_grammar.from_rule: Identifying Imperfective Verbs

Score: /10

よくある質問 (6)

A verb that describes an ongoing or repeated action.
Usually by its form or by checking a dictionary.
Only if you mean future or habit, but usually no. Use imperfective for ongoing.
You have to memorize the pairs. There is no single rule for all verbs.
A prefix that turns an ongoing verb into a completed one.
Only for future or sequential actions, never for ongoing ones.
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The Instrumental Case: Tools and Company
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