B1 Esperanto Grammar Path | Esperanto Grammar

B1 is where Esperanto stops being a collection of transparent forms and becomes a tool for sustained communication. The goal is not to know every affix or recognize every participle: it is to narrate, explain reasons, make proposals, report what someone said, and repair ambiguity while keeping agreement and -n reliable.

This path assumes the A2 foundation is active. If you still hesitate over noun/adjective endings, plural and accusative agreement, basic tense, la, personal pronouns, or the main table words, repair those first through the A2 path. Advanced-looking grammar will not compensate for unstable sentence roles.

Entry checkpoint

Begin B1 only when you can do all five tasks without consulting a chart:

Describe yesterday, today, and tomorrow with -is, -as, -os.
Mark number and case on every inflectable element of a plural direct object, as in tiujn du gravajn raportojn.
Distinguish static en la domo from directional en la domon.
ask both ĉu questions and ki- questions.
connect two clauses with kaj, sed, ĉar, kiam, or se.

Hieraŭ mi aĉetis du malmultekostajn biletojn, kaj morgaŭ ni iros al la koncerto.

Yesterday I bought two inexpensive tickets, and tomorrow we will go to the concert.

If producing that sentence requires several pauses for endings, spend one review week on agreement and the accusative overview. B1 study should add choices, not merely add more places to make an old error.

Maintain an input-and-pronunciation strand throughout the level. Type full Unicode reliably, learn Esperanto alphabetical order well enough to use dictionaries, and check the established spelling of assimilated loanwords. Once a week, record yourself reading an unseen paragraph: verify penultimate stress, consonant clusters, phrase rhythm, and question intonation. These skills do not form one isolated stage because every later speaking and writing task depends on them.

The sequence at a glance

Stage	Active outcome	Main systems
Reliable roles	keep subject, object, complement, and modifier clear in longer noun phrases	agreement, determination, flexible order, case in relatives
Verb control	propose, plan, and select the right participant frame	volitive, tense in clauses, valency, verb–preposition frames
Connected thought	give reasons, conditions, contrasts, reports, and indirect questions	clause linking, correlatives, reported content
Event perspective	compress time relations and choose active, passive, or -iĝ- presentation	participles and voice
Lexical reach	express quantity, evaluation, and new vocabulary transparently	prepositions, comparison, measures, affixes, compounds
Interaction	manage a practical conversation and write a connected account	requests, repair, stance, register, review

The order matters. Flexible word order is safe only after case is reliable; participial compression is useful only after clause time is clear; productive word formation works only when the base word and intended relation are understood.

Stage 1: make roles automatic

Study objects before the verb, objects after infinitives, coordinated objects, dates, and case inside relative clauses as one system. The question is always “what role does this phrase have here?”, not “where is it in the sentence?”

Add B1 noun-phrase precision: abstract and mass reference, proper names with la, ambaŭ/ĉiu, multiple adjectives, and scope. Practice by expanding one noun phrase while preserving all endings.

La du raportojn, kiujn vi sendis hieraŭ, mi jam atente legis.

I have already carefully read the two reports that you sent yesterday.

Raportojn is the fronted object of legis; kiujn is independently the object of sendis inside the relative clause. English order cannot supply those roles. Use the free-word-order case guide, but keep neutral SVO as your production default until marked order has a real discourse purpose.

Pronoun work belongs here too. Make oni active for general human subjects, keep si/sia tied to the subject of its own clause, and edit unclear chains of li/ŝi/ĝi/ili by repeating a noun when needed. Recognize the nonofficial modern pronoun ri and follow the referential preferences of the people concerned; do not treat one community’s choice as the only universal norm.

Stage 2: control intention, time, and valency

Learn the volitive in -u for commands, wishes, proposals, and desired subordinate actions.

Mi proponas, ke ni provu la novan horaron dum unu monato.

I propose that we try the new schedule for one month.

The main clause names the proposal; provu presents the trial as wanted rather than predicted. Contrast factual Mi aŭdis, ke ni provos....

Then consolidate tense in subordinate clauses and reported speech. Esperanto normally preserves the event timeline instead of applying automatic English backshift:

Ŝi diris, ke ŝi venos post la laboro.

She said that she would come after work.

Next study transitivity, -ig-/-iĝ-, impersonal verbs, and common verb frames. Record the whole construction—helpi al iu, pensi pri io, atendi iun—rather than an English translation plus a guessed preposition.

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For every new verb, write one frame showing its participants. A verb learned without its object or preposition pattern is only half learned.

Stage 3: connect clauses by meaning

Build outward from contrasts and causes: sed, concessive tamen, result tial/do, real se conditions, counterfactual -us, and result clauses. Then add reported statements, indirect questions, embedded ki- clauses, and possessive relative kies.

Kvankam la trajno malfruis, ni alvenis ĝustatempe, ĉar ni ekiris tre frue.

Although the train was late, we arrived on time because we set off very early.

Mi ne scias, ĉu la oficejo estas malfermita, sed mi kontrolos, kiam ni alvenos.

I do not know whether the office is open, but I will check when we arrive.

Choose the connector from the relation: ĉar introduces a cause, tial points from that cause to a result, and do can introduce a conclusion. The ĉar-or-tial decision guide prevents English so/because from controlling Esperanto structure.

Extend the table-word system by families, not isolated vocabulary. At B1 make iu/io/ia/ies/ie and tiam/tial/tiel/tiom productive, including ajn for free choice. Say why the ending fits: person/thing, kind, possessor, place, time, reason, manner, or quantity.

Stage 4: add participles without making prose heavy

Start with the six-participle map. Actively produce -anta, -inta, adjectival participles, and same-subject adverbial -ante/-inte. Then learn the esti passive and the intransitive -iĝ- alternative.

Fininte la kunvenprotokolon, mi sendis ĝin al ĉiuj partoprenantoj.

After finishing the meeting minutes, I sent them to all participants.

La raporto estis kontrolita de du kolegoj antaŭ ol ĝi publikiĝis.

The report was checked by two colleagues before it was published.

The first compressed clause shares subject mi. The second contrasts a true passive action with an -iĝ- event whose agent is not part of the clause. Compound active tenses such as estis laborinta belong mainly to recognition at B1; simple tense plus a time expression is usually clearer.

Stage 5: expand without translating word for word

Cycle through the B1 prepositions as semantic contrasts: location and limit (en, ĝis, inter), relation (kun, krom, kontraŭ, laŭ, malgraŭ), means (per), and flexible je. Pair them with the decision guides for de/el/da and por/pro.

Add comparison with ol, equality with tiel... kiel, and proportional ju... des. Practice real quantities: groups, approximations, distance, volume, and prices.

Ju pli longe ni atendis, des pli multekosta fariĝis la alternativa vojaĝo.

The longer we waited, the more expensive the alternative journey became.

For word formation, actively use frequent, transparent elements such as -ist-, -aĵ-, -ec-, -ad-, -ebl-, -ind-, and -end-. Learn rarer or less predictable formations such as -um- through established words, not free invention. A possible word is not automatically a conventional word.

Stage 6: interaction and register

Use the grammar in complete social actions: apologize and repair, request and offer, invite and decline, reformulate, and indicate the source of a claim. Practice neutral international wording before optimizing for local in-group style.

Se mi ĝuste komprenis vin, vi proponas, ke ni prokrastu la decidon ĝis vendredo.

If I understood you correctly, you propose that we postpone the decision until Friday.

This one sentence checks condition, reported proposal, volitive, pronoun reference, and a deadline. That integration—not rule recognition—is the B1 target.

Recognition-only material at this stage includes historical honorific patterns, rare compound tenses, highly marked discontinuous order, and every possible affix combination. Recognize their logic; do not prioritize them over ordinary connected speech.

Three cumulative production tasks

Travel account: write 130–170 words about a disrupted journey. Include two time connectors, one -inte clause, one relative clause with case, a measured distance or price, and a final evaluation.
Practical proposal: record a two-minute proposal for improving a club, workplace, or neighborhood. Include ke + -u, one realistic se condition, one reason, one contrast, and a reply to an imagined objection.
Information relay: read a short announcement, then explain it to someone else. Include one reported statement, one embedded question, one attributed claim, and one self-repair such as pli precize or mi volas diri.

La organizantoj anoncis, ke la ekskurso komenciĝos je la oka, sed ili ankoraŭ ne scias, ĉu la vetero permesos la boatveturon.

The organizers announced that the excursion will begin at eight, but they still do not know whether the weather will permit the boat trip.

Review loop

Use a four-week rotating loop:

Week 1: role accuracy—agreement, -n, prepositions, pronoun reference;
Week 2: clause meaning—time, cause, result, condition, report;
Week 3: compression and lexicon—participles, affixes, comparison, quantities;
Week 4: timed production—one conversation and one connected text, followed by error coding.

Every third day, retrieve old material in a new context. Every seventh day, rewrite one earlier text without looking at the correction. Track errors by system—role, agreement, tense/mood, connector, reference—not merely by sentence.

Self-test

You are ready to leave B1 when you can:

narrate for two minutes without losing tense or participant reference;
explain a cause and result with different connectors;
make and soften a proposal with -u;
form a real and a counterfactual condition;
use a relative pronoun’s case from its own clause;
choose active, passive, or -iĝ- according to focus;
infer an unfamiliar transparent derivative and verify whether it is conventional;
revise a paragraph after identifying your own recurring error type.

Se ni havus pli da volontuloj, ni povus malfermi la salonon ĉiutage; nun ni malfermu ĝin almenaŭ sabate.

If we had more volunteers, we could open the room every day; for now, let us open it at least on Saturdays.

Level-completion project

Plan a small international community event. Produce a 180–220-word announcement, a two-minute spoken explanation, and a five-turn question-and-answer exchange. Your package must include schedule and price, directions, a reason for the event, a contingency, one proposal, one reported fact, and a polite repair. Then revise it after a listener marks any unclear reference or role.

Success means that another learner can act on your message without switching to English. Perfect stylistic elegance is not required; reliable roles, connected meaning, and successful repair are.

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Do not advance because every B1 page looks familiar. Advance when you can combine its systems under time pressure and diagnose the errors that remain.

Common Mistakes

Advancing with an unstable object system

❌ La du grava raporto mi jam legis.

Incorrect — the plural direct object needs agreement and accusative marking.

✅ La du gravajn raportojn mi jam legis.

I have already read the two important reports.

Copying English tense backshift

❌ Ŝi diris, ke ŝi venus morgaŭ posttagmeze.

Incorrect for a firm reported plan — -us makes the coming conditional.

✅ Ŝi diris, ke ŝi venos morgaŭ posttagmeze.

She said that she would come tomorrow afternoon.

Recognizing a proposal but not producing its mood

❌ Mi proponas, ke ni atendas ĝis vendredo.

Incorrect for the intended proposal — -as reports rather than requests the waiting.

✅ Mi proponas, ke ni atendu ĝis vendredo.

I propose that we wait until Friday.

Overloading a sentence with compound tense

❌ Antaŭe mi estis jam estinta vizitinta la urbon.

Incorrect and needlessly stacked — the intended sequence is obscured.

✅ Mi jam vizitis la urbon antaŭ tiu vojaĝo.

I had already visited the city before that trip.

Key Takeaways

B1 requires automatic roles first, then verb control, clause relations, participial perspective, lexical expansion, and interaction. Review cumulatively, keep rare forms subordinate to useful contrasts, and finish with a project that forces grammar to carry real information.

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