B1 Tense & Aspect 1 min read 보통

Prefixation for Perfective Aspect

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Grammar Rule in 30 Seconds

Adding a prefix to an imperfective verb creates a perfective verb, signaling that an action is completed or bounded.

  • Prefixes change the aspect: 'psát' (to write - ongoing) becomes 'napsat' (to write down - completed).
  • Perfective verbs cannot be used in the present tense to describe ongoing actions.
  • Most prefixes also change the meaning slightly, like 'jíst' (to eat) vs 'dojíst' (to finish eating).
Prefix + Verb (Imperfective) = Verb (Perfective/Completed)

Imperfective to Perfective Transformation

Imperfective Prefix Perfective Meaning
psát
na-
napsat
to write down
jíst
do-
dojíst
to finish eating
pít
vy-
vypít
to drink up
číst
pře-
přečíst
to read through
dělat
u-
udělat
to complete/make
jít
při-
přijít
to arrive

Meanings

Prefixation is the primary method in Czech for converting an imperfective verb (describing a process) into a perfective verb (describing a completed event).

1

Completion

The action is finished in its entirety.

“Přečetl jsem knihu.”

“Uvařil jsem večeři.”

2

Resultative

Focusing on the result of the action.

“Dojedl jsem oběd.”

“Vypil jsem kávu.”

3

Directional/Spatial

Adding a spatial dimension to the verb.

“Vejít do domu.”

“Odejít z práce.”

Reference Table

Reference table for Prefixation for Perfective Aspect
Form Structure Example
Affirmative
Prefix + Verb
Napsal jsem to.
Negative
Ne + Prefix + Verb
Nenapsal jsem to.
Question
Prefix + Verb + jsi?
Napsal jsi to?
Future
Prefix + Verb (future)
Napíšu to.
Past
Prefix + Verb (past)
Napsal jsem to.
Short Answer
Prefix + Verb
Napsal.

격식 수준 스펙트럼

격식체
Dokončil jsem práci.

Dokončil jsem práci. (Work/Daily life)

중립
Udělal jsem práci.

Udělal jsem práci. (Work/Daily life)

비격식체
Mám to hotový.

Mám to hotový. (Work/Daily life)

속어
Mám to zmáknutý.

Mám to zmáknutý. (Work/Daily life)

The Aspectual Map

Verb Aspect

Imperfective

  • psát writing

Perfective

  • napsat written

수준별 예문

1

Píšu dopis.

I am writing a letter.

2

Napsal jsem dopis.

I wrote the letter.

3

Čtu knihu.

I am reading a book.

4

Přečetl jsem knihu.

I read the book.

1

Dělám úkol.

I am doing homework.

2

Uděláme to zítra.

We will do it tomorrow.

3

Piju kávu.

I am drinking coffee.

4

Vypil jsem kávu.

I drank the coffee.

1

Pracoval jsem na tom celý den.

I worked on it all day.

2

Vypracoval jsem ten plán.

I completed the plan.

3

Uklízím dům.

I am cleaning the house.

4

Uklidil jsem dům.

I cleaned the house.

1

Musíme to dořešit.

We must resolve this.

2

Přišel jsem včas.

I arrived on time.

3

Odešel bez rozloučení.

He left without saying goodbye.

4

Ztratil jsem naději.

I lost hope.

1

Podařilo se mu to dokončit.

He managed to finish it.

2

Rozbil se mi telefon.

My phone broke.

3

Vymyslel jsem nový systém.

I invented a new system.

4

Přepsal jsem historii.

I rewrote history.

1

Zabydlel se v novém bytě.

He settled into the new apartment.

2

Prostudoval jsem všechny podklady.

I studied all the documents.

3

Překonal všechny překážky.

He overcame all obstacles.

4

Vybudoval impérium.

He built an empire.

혼동하기 쉬운

Prefixation for Perfective Aspect 대 Imperfective vs Perfective

Learners don't know when to use which.

자주 하는 실수

✗

Napišu dopis teď.

✓

Píšu dopis teď.

Perfective cannot be used for current ongoing action.
✗

Včera jsem psal knihu.

✓

Včera jsem napsal knihu.

If it's finished, use perfective.
✗

Dělám to včera.

✓

Udělal jsem to včera.

Wrong aspect for past.
✗

On to přečítal.

✓

On to přečetl.

Wrong aspectual form.

문장 패턴

Už jsem ___.

Real World Usage

Texting constant

Už jsem to poslal.

💡

Learn pairs

Always learn the imperfective and perfective pair together.

Smart Tips

Use the perfective form.

Pracoval jsem to. → Vypracoval jsem to.

발음

na-PSAT

Prefix stress

Stress usually stays on the root, not the prefix.

Falling

Napsal jsem to. ↘

Definitive completion.

암기하기

기억법

Think of the prefix as a 'Done' stamp you press onto the verb.

시각적 연상

Imagine a half-written letter (psát) and then a hand stamping it with a big red 'NA' stamp, turning it into a finished letter (napsat).

Rhyme

When the task is done and through, add a prefix, it's for you.

Story

Petr was writing (psát) his book. He added a prefix and suddenly it was finished (napsat). Now he is celebrating because the work is done.

Word Web

psátnapsatčístpřečístjístdojístpítvypít

챌린지

Write 5 sentences using perfective verbs today.

문화 노트

Czechs are very precise about aspect. Using the wrong one sounds like you don't know if the task is done.

Slavic aspectual system.

대화 시작하기

“

Co jsi dnes udělal?

일기 주제

Describe your day using only perfective verbs.

자주 하는 실수

Incorrect

정답

Incorrect

정답

Incorrect

정답

Incorrect

정답

Test Yourself

Fill in the correct perfective form.

Dnes jsem ___ (napsat) úkol.

✓ Correct! ✗ Not quite. Correct answer: napsal
Past completed action.

Score: /1

연습 문제

1 exercises
Fill in the correct perfective form.

Dnes jsem ___ (napsat) úkol.

✓ Correct! ✗ Not quite. Correct answer: napsal
Past completed action.

Score: /1

자주 묻는 질문 (1)

No, it implies future result.

Scaffolded Practice

1

1

Mastery Progress

Needs Practice

Improving

Strong

Mastered

In Other Languages

German moderate

Perfekt

Czech prefixes change the verb itself.

French partial

Passé Composé

Czech aspect is inherent in the verb.

Spanish low

Pretérito Perfecto

Czech aspect is a binary system.

Japanese moderate

Te-shimau

Czech prefix is attached to the root.

Arabic low

Qad + Perfect

Czech prefix is morphological.

Chinese moderate

Le particle

Czech prefix is internal to the word.

Learning Path

Prerequisites

Related Grammar Rules

A2

Concept of Aspect (Dokonavost)
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