This is your ordered route through B1 — the pages to study, in the order to study them, each with a one-line reason for its place. If A2 built the skeleton (all six cases, the past and future tenses, a first glimpse of aspect), B1 is where the verb system comes alive. The spine of this whole level is one idea: aspect. Almost everything at B1 either is aspect (perfective vs imperfective, motion verbs, the perfective-as-future) or depends on it (the conditional, the imperative, connected narrative). Master aspect and the rest falls into place; skip it and you'll stall here for months.
Work top to bottom. If the A2 spine — the full case system and the past tense — still feels effortful, go back to the A2 Learner Path first. B1 assumes cases are automatic and turns all its attention to verbs.
Stage 1 — What aspect really is
Before anything else, rebuild your understanding of aspect from recognition (A2) to a working model you can produce.
- What is aspect? — Re-anchor the core idea: imperfective = process, ongoing, repeated; perfective = a single completed whole. Everything below hangs on this.
- What imperfective means and what perfective means — Two pages that go deeper than A2 did, teaching you to feel the difference rather than memorise a rule.
- Aspect pairs — The central fact of the Czech lexicon: most verbs live in pairs (dělat / udělat, psát / napsat). Learn verbs in pairs from now on, never singly.
Celé dopoledne jsem uklízel, ale neuklidil jsem to.
I was cleaning all morning, but I didn't get it clean. (imperfective process vs perfective result — the heart of aspect)
Stage 2 — Where aspect pairs come from
Aspect isn't random: pairs are built by two mechanisms. Understanding them lets you predict a verb's partner instead of memorising every pair blind.
- Perfective by prefix — The commonest route: add a prefix to make an imperfective perfective (psát → napsat, dělat → udělat).
- Imperfective by suffix — The reverse engine: a suffix makes a perfective imperfective (dát → dávat, koupit → kupovat).
- Lexical vs empty prefixes — The crucial subtlety: some prefixes only perfectivise (empty), others also change the meaning (lexical: psát "write" → podepsat "sign"). This is where prefix study earns its keep.
- Aspect pairs to memorise — The high-frequency pairs that resist the neat rules — learn these as vocabulary.
Zítra ti napíšu, jakmile to dopíšu.
I'll write to you tomorrow, as soon as I finish writing it. (na- perfective vs do- perfective — two prefixes, two meanings)
Stage 3 — Aspect in every tense
Now watch the same pair behave differently across the tenses. This is the payoff: one contrast, reused everywhere.
- Aspect in the past — dělal jsem ("was doing") vs udělal jsem ("did / finished"). You met this at A2; now produce it deliberately.
- Aspect in the present — Only imperfectives have a true present. This is why the next point exists.
- The perfective present is the future — The single most counter-intuitive fact for English speakers: a perfective verb conjugated in the "present" (udělám) means the future ("I'll do / get done"). There is no present-tense perfective meaning.
- Aspect in the future — Ties it together: perfective future (napíšu) vs the budu
- imperfective future (budu psát).
Dnes večer píšu úkol, ale napíšu ho až zítra.
This evening I'm writing my homework, but I'll finish it only tomorrow. (imperfective present 'píšu' vs perfective future 'napíšu')
Stage 4 — The two futures
Because of the perfective-present rule, Czech has two ways to talk about the future, and choosing between them is an aspect choice.
- The future decision — The master overview: when to use each future form.
- The imperfective future with budu — budu dělat for ongoing or repeated future action.
- The perfective future — udělám for a single completed future action — the conjugated perfective, no budu.
- budu vs the perfective future — The dedicated decision page. Bookmark it; you'll return often.
Zítra budu celý den malovat, ale ten obraz domaluju až v pátek.
Tomorrow I'll be painting all day, but I'll finish the picture only on Friday. (budu + imperfective for the ongoing day; perfective 'domaluju' for the completion)
Stage 5 — Motion verbs: aspect's twin
Motion verbs run a second two-way contrast layered on top of aspect: determinate (one specific trip, in progress) vs indeterminate (habitual, repeated, or general). This is genuinely hard because English has nothing like it — learn it as its own system.
- Motion verbs overview — The framework: why jít and chodit both mean "go" but aren't interchangeable.
- jít vs chodit — Going on foot: one trip now (jdu) vs habitually (chodím).
- jet vs jezdit — The same split for going by vehicle.
- jít vs chodit, jet vs jezdit — The decision page pulling both pairs together with a flowchart.
- Motion futures: půjdu, pojedu — Motion verbs form their future irregularly (půjdu "I'll go", not budu jít) — a small but essential quirk.
Do práce jezdím autem, ale dneska jdu pěšky.
I usually go to work by car, but today I'm walking. (indeterminate habit 'jezdím' vs determinate one-off 'jdu')
Zítra půjdu k doktorovi, chodím tam každý měsíc.
Tomorrow I'll go to the doctor; I go there every month. (irregular future 'půjdu' + habitual 'chodím')
Stage 6 — The conditional and mood
With aspect and the futures in hand, add the conditional — the mood of hypotheticals, wishes, and polite requests. It is built on the second-position clitic bych, so it also drills word order.
- The present conditional with bych — dělal bych ("I would do"). The form and its meaning.
- bych in second position — The clitic bych/bys/by… obeys the same second-position rule as the past auxiliary — a rhythm you must internalise.
- bys and by spelling — The notorious aby(s) / kdyby(s) fusions; a spelling trap worth a dedicated page.
- kdyby conditional clauses — "If I were…": the hypothetical kdyby clause and its matching main-clause conditional.
- Polite requests — Nemohl byste…? ("Could you possibly…?"). The conditional is how Czech is polite — high-frequency, high-payoff.
- Wishes with rád by — Chtěl bych… / Rád bych… ("I'd like to…"). The everyday way to want something graciously.
- Aspect in the conditional — Aspect returns: dělal bych (would be doing) vs udělal bych (would do/get done).
Nemohl byste mi prosím pomoct s tím kufrem?
Could you possibly help me with this suitcase? (the conditional as everyday politeness)
Kdybych měl víc času, naučil bych se hrát na klavír.
If I had more time, I'd learn to play the piano. (kdyby clause + conditional main clause)
Stage 7 — The imperative (an aspect choice again)
The imperative is short to learn, but choosing its aspect is subtle — so it belongs after aspect is solid.
- Imperative formation — Building the command form: dělej!, pojď!, napiš!.
- Aspect in affirmative vs negative commands — A beautiful rule: positive commands lean perfective (Zavři okno! "Close the window!"), but negative commands almost always go imperfective (Nezavírej okno! "Don't close the window!"). Get this and your commands stop sounding foreign.
- Softening requests — Bare imperatives can sound blunt; learn the prosím tě, diminutive, and conditional softeners.
Zavři okno, prosím tě. A neotvírej ho, dokud tady jsem.
Close the window, please. And don't open it while I'm here. (perfective affirmative 'zavři' vs imperfective negative 'neotvírej')
Stage 8 — Reflexives and their placement
Reflexive se and si are everywhere, and where they sit in the sentence is governed by the clitic rules.
- The reflexive pronoun se vs si — What se (accusative) and si (dative) do, and the many verbs that require them.
- se/si clitic placement — The high-value skill: se is a second-position clitic — Jak se máš?, never Jak máš se?.
- The reflexive passive with se — Tady se mluví česky ("Czech is spoken here") — an extremely common construction you'll now start to notice everywhere.
Musím se ještě učit, ještě jsem se to nenaučil.
I still have to study, I haven't learned it yet. (se sits in second position, next to the auxiliary)
Stage 9 — Nouns and numbers catch up
A little declension consolidation the verb-heavy B1 still needs.
- The genitive plural zero ending — The tricky "no-ending" genitive plural (žen, měst) that trips up counting and quantities.
- Five-plus takes the genitive and numbers zero to four — Why pět and up force the genitive plural (pět korun), while 2–4 don't. A B1 essential for shopping, time, and dates.
V lednici mám pět jablek, ale jenom dvě rajčata.
I've got five apples in the fridge, but only two tomatoes. (genitive plural after 5+, nominative-like after 2–4)
Stage 10 — Relative clauses: connecting ideas
To speak in real sentences rather than fragments, you need the relativizer který ("which/who/that").
- Relative clauses — How který agrees in gender/number with its antecedent but takes its case from its own clause — a genuinely new mechanic.
- který vs jaký — "Which" (který, picking one out) vs "what kind of" (jaký, asking about quality) — a distinction English blurs.
To je ten kolega, kterého jsem ti včera představil.
That's the colleague I introduced to you yesterday. (který agrees in gender, takes accusative from its own clause)
Stage 11 — High-frequency choosing pages
These decision pages resolve the everyday choices B1 speakers stumble on daily. Fold them in as you go.
- perfective vs imperfective — The master aspect decision page — the summary of everything above.
- mít rád vs líbit se vs chutnat — The three ways to "like" (a person/thing generally, a momentary impression, food) — a classic English-speaker tangle.
- už vs ještě — "already/yet" vs "still/not yet" — small words, huge frequency, deeply tied to aspect.
- choosing aspect: the summary — The capstone. If only one page sticks from B1, make it this one.
Ten film se mi moc líbil a hlavní herec se mi líbí obecně.
I really liked that film, and I like the lead actor in general. (líbit se for the impression — contrast with mít rád)
Stage 12 — Put it to work: connected speech
Finally, apply everything in richer, connected expression.
- Making plans and invitations — Futures, the conditional, and polite requests all at once.
- Agreeing and disagreeing — The conditional's politeness plus the discourse particles.
- Emotions and opinions — Where the dative experiencer and líbit se pay off.
Nešli bychom v pátek do kina? Rád bych viděl ten nový film.
Shall we go to the cinema on Friday? I'd love to see that new film. (conditional invitation + rád bych — the B1 toolkit in one breath)
What B1 establishes — and what to leave for B2
By the end of this path you produce aspect rather than merely recognising it; you handle both futures, the conditional in all its everyday politeness, the imperative with the right aspect, motion verbs, and relative clauses. This is the threshold of genuine conversational fluency: you can narrate, hypothesise, request, and connect ideas.
What to deliberately leave for B2:
- Free word order and topic–focus — using position for emphasis, not just correctness.
- The full clitic chain — ordering se, bych, and pronoun clitics when several collide.
- The two passives, reported speech, advanced negation, and register control — the tools that make speech sound native rather than merely correct.
Common mistakes
These are the sequencing and learner errors this path is built to prevent.
❌ Studying the conditional before aspect is solid.
Counterproductive — the conditional carries its own aspect choice (dělal bych vs udělal bych); aspect must come first (Stage 1 before Stage 6).
✅ Aspect first, then the conditional.
Correct — this is the order on the page.
❌ Zítra budu napsat ten dopis.
Incorrect — budu never combines with a perfective; a perfective makes its own future by conjugating: 'napíšu'.
✅ Zítra napíšu ten dopis.
I'll write the letter tomorrow.
❌ Do práce jdu autem každý den.
Incorrect — a daily habit is indeterminate 'jezdit', not the one-trip determinate 'jít' (and by vehicle you need jet/jezdit anyway).
✅ Do práce jezdím autem každý den.
I go to work by car every day.
❌ Neotevři okno, je zima!
Incorrect — negative commands take the imperfective; the perfective 'neotevři' sounds foreign here.
✅ Neotvírej okno, je zima!
Don't open the window, it's cold! (negative imperative = imperfective)
Where to go next
When you can choose aspect on the fly, form both futures without thinking, and reach for the conditional to be polite — not before — move on to the B2 Learner Path, where word order, clitics, the passive, and register turn correct Czech into native-sounding Czech.
Now practice Czech
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Start learning Czech→Related Topics
- A2 Learner PathA2 — Expanding cases, the past tense, and the first taste of aspect.
- B2 Learner PathB2 — Complex syntax, the passive, clitic mastery, and register awareness.
- What Is Verbal Aspect?A1 — An overview of the perfective/imperfective distinction that organizes the entire Czech verb system.
- Choosing Aspect: A Decision GuideB1 — A practical checklist for picking perfective or imperfective, with cue words and worked decisions.
- The Present Conditional (bych, bys, by…)B1 — Forming 'would' with the conditional auxiliary plus the l-participle.