Class I is the -e- conjugation: in the present tense the personal endings attach with a connecting -e- directly to a consonant stem, giving nes-e-š, ber-e-š, peč-e. It is the oldest and most heterogeneous of the five conjugation classes, and it is where almost all of Czech's strong and irregular verbs live. This page uses nést ("to carry") as the clean model and then lays out the subtypes that share the present-tense endings but differ in the stem.
The model verb: nést
The defining feature of the nést-type is a stem that ends in a bare consonant (nes-). The present endings clip straight onto it, and the past tense adds -l directly to that same consonant: nes- + -l → nesl.
Present tense
| Person | Form |
|---|---|
| já | nesu |
| ty | neseš |
| on / ona / ono | nese |
| my | neseme |
| vy | nesete |
| oni / ony / ona | nesou |
Note the two endings that have no connecting -e-: the 1sg -u (nesu) and the 3pl -ou (nesou). Every other form shows the class-marking -e-.
Počkej, nesu to!
Wait, I'm carrying it over!
Neseš toho moc, dej mi jednu tašku.
You're carrying too much, give me one bag.
Past tense (the -l participle)
The past participle agrees in gender and number, exactly as everywhere else. Add -l to the consonant stem and then the gender/number endings:
| Singular | Plural | |
|---|---|---|
| masculine | nesl | nesli |
| feminine | nesla | nesly |
| neuter | neslo | nesla |
The neuter plural ends in -a (nesla) — the same shape as the feminine singular, but a different cell. Neuter-plural subjects (e.g. děvčata "girls/young ones") take this -a form.
Nesl jsem těžké tašky a rozbolela mě záda.
I was carrying heavy bags and my back started hurting. (male speaker)
Nesla domů celý ten nákup sama.
She carried the whole shopping home by herself.
Imperative
Because the stem already ends in a consonant, the singular imperative is the bare stem: nes. The plural forms add -me and -te.
| Form | Imperative |
|---|---|
| ty | nes |
| my (let's) | nesme |
| vy | neste |
Neste to opatrně, je to křehké.
Carry it carefully, it's fragile.
Don't confuse Class I (-e-) with Class III (-je-)
The trap is the third-person singular. A Class III verb like krýt ("to cover") makes kryje, and kupovat ("to buy") makes kupuje — with a -je-. The stem there ends in -j. A Class I verb makes nese, vede, peče — a plain -e clipped to a consonant, no j. The same split shows up at the edges: Class I has 1sg -u / 3pl -ou (nesu, nesou), while Class III has 1sg -ji/-ju / 3pl -jí/-jou (kryji, kryjí). When you hear a j before the ending, you are in Class III, not here.
| Class I (-e-) | Class III (-je-) | |
|---|---|---|
| 3sg | nese | kryje |
| 1sg | nesu | kryji / kryju |
| 3pl | nesou | kryjí / kryjou |
The subtypes of Class I
Class I keeps a constant set of present endings but the stem behaves in several different ways. These are the families you need to recognize.
1. The pure consonant type (nést, vést, číst, růst)
Same as the model: the present stem is a bare consonant, and the past adds -l to it. The catch is that the infinitive often hides the real stem — you have to learn the present stem alongside it.
| Infinitive | Meaning | 3sg present | Past (m sg) |
|---|---|---|---|
| nést | to carry | nese | nesl |
| vést | to lead | vede | vedl |
| vézt | to transport (by vehicle) | veze | vezl |
| číst | to read | čte | četl |
| růst | to grow | roste | rostl |
| kvést | to bloom | kvete | kvetl |
Watch vést vs vézt: same present -e- endings, but vést "to lead" gives vede / vedl and vézt "to transport" gives veze / vezl. And číst is the wild one: the present stem contracts to čt- (čtu, čteš, čte) while the past inserts a vowel (četl).
Tahle cesta vede přímo k řece.
This path leads straight to the river.
Čtu zrovna jednu skvělou detektivku.
I'm reading a great detective novel right now.
Děti rostou tak rychle, že jim nestíhám kupovat boty.
The kids grow so fast that I can't keep up buying them shoes.
2. The brát-type (vowel/stem shift)
Here the infinitive and the present stem look unrelated. brát ("to take") conjugates on the stem ber-: beru, bereš, bere, bereme, berete, berou; past bral. The present -e- endings are perfectly regular — it is only the stem vowel that jumps.
Beru si jen malé espresso, díky.
I'll just have a small espresso, thanks.
Bereš si do kávy cukr?
Do you take sugar in your coffee?
Others in this family: hnát → ženu ("to drive, chase"), prát → peru ("to do laundry"). Compare brát/vzít in detail on its own reference card.
3. The mazat-type (consonant alternation)
The stem-final consonant softens before the -e- endings: z → ž, s → š, t → c. The flagship is psát ("to write"), whose stem softens to píš-: píšu, píšeš, píše, píšeme, píšete, píšou; past psal. The literary register prefers píši (1sg) and píší (3pl); everyday speech uses píšu / píšou.
| Infinitive | Meaning | 3sg present | Past (m sg) |
|---|---|---|---|
| psát | to write | píše | psal |
| mazat | to smear, wipe | maže | mazal |
| ukázat | to show | ukáže | ukázal |
| česat | to comb | češe | česal |
Píše mi pořád, snad desetkrát denně.
He writes to me all the time, like ten times a day. (male subject)
Ukaž mi tu fotku ještě jednou.
Show me that photo one more time.
See psát / napsat for the full aspect pair.
4. The péct-type (velar alternation)
Verbs whose stem ends in a velar (k, h) alternate it to a postalveolar (č, ž) before the front -e- endings, and the alternation reverses in the past -l form. péct ("to bake") gives peču, pečeš, peče, pečeme, pečete, pečou in the present but pekl, pekla, peklo, pekli, pekly, pekla in the past — the č of the present goes back to k before -l.
| Infinitive | Meaning | 3sg present | Past (m sg) |
|---|---|---|---|
| péct | to bake | peče | pekl |
| téct | to flow, leak | teče | tekl |
| moct | to be able | může | mohl |
Babička dneska peče vánoční cukroví.
Grandma is baking Christmas cookies today.
Z kohoutku teče rezavá voda.
Rusty water is coming out of the tap.
The everyday verb moct ("can") belongs here too, with an h/ž twist: můžu, můžeš, může… but past mohl. See péci / péct for the bake/roast paradigm in full.
5. The -řít type (stem in ř)
Verbs whose infinitive ends in -řít keep an ř throughout: umřít ("to die") → umřu, umřeš, umře, umřeme, umřete, umřou; past umřel. Likewise zavřít ("to close") → zavřu… zavřel, and otevřít ("to open") → otevřu… otevřel. The singular imperative is -ři: zavři, otevři.
Zavři okno, je tu hrozný průvan.
Close the window, there's a terrible draft in here.
Otevři dveře, prší a já mám plné ruce.
Open the door, it's raining and my hands are full.
Common mistakes
❌ Nesem to dovnitř.
Wrong (nonstandard): the 1pl is neseme; nesem is colloquial only and out of place in writing.
✅ Neseme to dovnitř.
We're carrying it inside.
❌ Pisu dopis.
Wrong: psát softens its stem to píš- in the present, so the 1sg is píšu — note the š and the long í, not a bare 'pis-'.
✅ Píšu dopis.
I'm writing a letter.
❌ Peku chleba.
Wrong: péct alternates k→č before -e endings, so the 1sg is peču.
✅ Peču chleba.
I'm baking bread.
❌ Nesil jsem tašky.
Wrong: the past of nést adds -l straight to the consonant stem — nesl, not 'nesil'.
✅ Nesl jsem tašky.
I was carrying bags. (male speaker)
❌ Vedu tě k řece.
Wrong meaning if you mean 'this path leads' — that's vede; vedu is the 1sg 'I lead'.
✅ Cesta vede k řece.
The path leads to the river.
Key takeaways
- Class I is the -e- conjugation: present endings on a consonant stem, with 1sg -u and 3pl -ou (nesu… nesou).
- The model nést gives nesu, neseš, nese, neseme, nesete, nesou; past nesl (neuter plural nesla); imperative nes.
- Don't confuse it with Class III -je- (kryje, kupuje): a j before the ending means Class III.
- The subtypes — nést (bare consonant), brát (beru), psát (píšu), péct (peču), umřít (umřu) — share endings but have unpredictable stems.
- Memorize each verb as infinitive + 1sg present + past participle; the rest is regular.
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Start learning Czech→Related Topics
- Class I: -e- Verbs (nést, brát)A2 — The -e- conjugation, where the present stem can look nothing like the infinitive and has to be memorised verb by verb.
- Class III (-je-): the krýt and kupovat patternsB1 — Reference table for the Class III -je- conjugation, including the productive -ovat type.
- brát / vzít — to takeA1 — Full conjugation of the suppletive aspect pair brát (imperfective) and vzít (perfective) — one meaning built from two unrelated roots.
- psát / napsat — to writeA1 — Full conjugation of the aspect pair psát (imperfective) and napsat (perfective), a mazat-type verb with the s → š alternation.
- péci / péct — to bake, to roastB1 — Full conjugation of péci/péct, a Class I verb with c/č/k velar alternation.
- The Five Conjugation ClassesA2 — A map of the five Czech present-tense classes, named by their 3rd-person-singular marker -e, -ne, -je, -í, -á.