Irregular Present Tense Patterns in Czech

Overview

While Czech verb conjugation follows several regular patterns (the -ám, -ím, and -uji classes), a significant number of common verbs deviate from these patterns in the present tense. At the CEFR A1 level, these irregular verbs are among the first you encounter because they include some of the most frequently used verbs in the language.

Irregular present tense patterns typically involve stem changes — vowel shifts, consonant alterations, or entirely different stems. The infinitive form often looks quite different from the conjugated present form: spát (to sleep) becomes spím (I sleep), and psát (to write) becomes píšu (I write).

Because these verbs appear in virtually every conversation, memorizing their forms is unavoidable. The good news is that many share sub-patterns, so once you learn a few, related verbs become predictable.

How It Works

Key Irregular Verb Conjugations

Infinitive	Meaning	já	ty	on/a/o	my	vy	oni
spát	to sleep	spím	spíš	spí	spíme	spíte	spí
stát	to stand	stojím	stojíš	stojí	stojíme	stojíte	stojí
brát	to take	beru	bereš	bere	bereme	berete	berou
psát	to write	píšu	píšeš	píše	píšeme	píšete	píšou
jíst	to eat	jím	jíš	jí	jíme	jíte	jedí
pít	to drink	piju	piješ	pije	pijeme	pijete	pijou
číst	to read	čtu	čteš	čte	čteme	čtete	čtou
říct	to say	řeknu	řekneš	řekne	řekneme	řeknete	řeknou
jít	to go	jdu	jdeš	jde	jdeme	jdete	jdou

Patterns Within the Irregularity

Vowel changes in the stem:

• brát → beru (á → e)
• psát → píšu (á → í with consonant change)
• spát → spím (á → í)

Consonant alternation:

• psát → píš- (s → š)
• mazat → maž- (z → ž)

Stem replacement:

• stát (to stand) → stoj-
• jít (to go) → jd-

Examples in Context

Czech	English	Note
Spím osm hodin.	I sleep eight hours.	spát → spím
Stojíš ve frontě?	Are you standing in line?	stát → stojíš
Beru si kabát.	I'm taking my coat.	brát → beru
Píše dopis.	He is writing a letter.	psát → píše
Co jíš?	What are you eating?	jíst → jíš
Piju čaj.	I'm drinking tea.	pít → piju
Čtu knihu.	I'm reading a book.	číst → čtu
Kam jdeš?	Where are you going?	jít → jdeš
Řeknu ti zítra.	I'll tell you tomorrow.	říct → řeknu
Jedí oběd.	They're eating lunch.	jíst → jedí

Common Mistakes

Using the infinitive stem for conjugation

• Wrong: Já psám dopis.
• Right: Já píšu dopis.
• Why: The stem changes from ps- to píš- in the present tense. Regular endings cannot be added to the infinitive stem.

Confusing two meanings of stát

• Wrong: Kolik stojím? (How much do I cost?)
• Right: Kolik to stojí? (How much does it cost?)
• Why: Stát means both "to stand" and "to cost" — both conjugate as stoj- but context determines meaning.

Wrong third-person plural endings

• Wrong: Oni berí.
• Right: Oni berou.
• Why: Verbs in the beru pattern take -ou in 3rd person plural, not -í.

Applying the wrong conjugation class

• Wrong: Já spám. (treating it like -ám class)
• Right: Já spím.
• Why: Despite the infinitive ending in -át, spát follows the -ím conjugation pattern in the present tense.

Usage Notes

These irregular verbs are so common that avoiding them is impossible. Verbs like jít (go), jíst (eat), pít (drink), psát (write), and číst (read) appear in virtually every Czech conversation. While they look daunting on paper, frequent exposure and practice make them second nature. Many Czech language courses introduce these verbs individually in the first few lessons, precisely because they are essential for basic communication.

The key to success is recognizing that these are not truly "irregular" — they follow older, historically regular patterns that simply differ from the three main conjugation classes taught at A1. With time, learners develop an intuition for which infinitive patterns predict which present-tense stems.

Practice Tips

• Group irregular verbs by their present-tense sub-pattern (e.g., all -u/-eš/-e verbs together) and drill them as sets.
• Write out full conjugation tables by hand for the ten most common irregular verbs — physical writing aids retention.
• Use each verb in a daily sentence about your routine: Píšu email. Jím oběd. Čtu zprávy.
• Focus especially on jít, jíst, pít as these three verbs alone cover a huge portion of daily communication.

Related Concepts

• Prerequisite: Personal Pronouns — builds the foundation for irregular present tense patterns