Esperanto uses the ki- table words kie, kiam, and kiel not only in questions but also to connect relative clauses. As relatives, they point back to an explicit or understood place, time, or manner: la domo, kie mi loĝas “the house where I live,” la tago, kiam ni renkontiĝis “the day when we met,” and faru tiel, kiel ni interkonsentis “do it the way we agreed.”
One system, two uses
In a direct or reported question, a ki- word asks for missing information:
Mi ne scias, kie ŝi laboras.
I do not know where she works.
Here kie represents an unknown place. In a relative clause, the place is already supplied by an antecedent:
Mi vizitis la klinikon, kie ŝi laboras.
I visited the clinic where she works.
The clause kie ŝi laboras describes la klinikon. The same form appears in both structures, but the information job differs: interrogative kie requests or embeds an answer; relative kie reconnects the clause to a known location.
Relative kie: location
Use kie when the antecedent supplies the location in which, at which, or on which the relative event occurs:
Ĉi tiu estas la kafejo, kie ni kutime tagmanĝas.
This is the café where we usually have lunch.
Ili trovis trankvilan angulon, kie la infanoj povis dormi.
They found a quiet corner where the children could sleep.
With a location noun, a preposition plus kiu is often an equally grammatical alternative. The choice makes the spatial relation more or less explicit:
Jen la seĝo, sur kiu mi lasis mian jakon.
Here is the chair on which I left my jacket.
Jen la seĝo, kie mi lasis mian jakon.
Here is the chair where I left my jacket.
The first version foregrounds sur; the second treats the chair generally as the relevant location. Do not use kie merely because English permits “where” after an abstract noun. If no real or metaphorically established location is meant, state the actual relation with en kiu, pri kiu, or another fitting form.
Direction and origin remain visible. Kien marks movement toward the relative place; de kie marks movement or perspective from it:
Ni fine atingis la vilaĝon, kien nia amiko translokiĝis pasintjare.
We finally reached the village that our friend moved to last year.
La tegmento, de kie oni vidas la tutan havenon, estas malfermita al vizitantoj.
The roof, from which one can see the entire harbor, is open to visitors.
English may leave “to” implicit in “the village where she moved,” but Esperanto distinguishes static kie from directional kien when the direction is part of the relative word's own role.
Relative kiam: time
Relative kiam connects a finite clause to a time expression:
Mi ankoraŭ memoras la vesperon, kiam ni unuafoje renkontiĝis.
I still remember the evening when we first met.
Venos momento, kiam ni devos elekti inter la du proponoj.
A moment will come when we will have to choose between the two proposals.
The antecedent can remain unspoken when the context supplies tiam “then”:
Kiam la pluvo ĉesos, ni ekiros.
When the rain stops, we will set out.
This is a time adverbial clause with an understood temporal connection: “at the time when the rain stops.” The explicit pair tiam ... kiam can emphasize the correlation:
Ni ekiros tiam, kiam la vojoj estos denove sekuraj.
We will set out when the roads are safe again.
A preposition may govern the entire kiam clause. Post kiam means “after,” and de kiam establishes a starting point:
Post kiam ĉiuj alvenis, ni komencis la kunvenon.
After everyone arrived, we began the meeting.
De kiam ŝi laboras hejme, ŝi multe malpli veturas.
Since she started working from home, she travels much less.
These are not interrogative phrases asking “until when?” or “since when?” The preposition connects the whole event to the main clause. See time clauses for their broader sequencing patterns.
Relative kiel: manner and degree
Relative kiel points to a manner, often expressed or understood through tiel:
Faru tiel, kiel ni interkonsentis hieraŭ.
Do it the way we agreed yesterday.
La infano aranĝis la ĉambron, kiel montris al ŝi la instruisto.
The child arranged the room as the teacher showed her.
The second sentence has an understood manner antecedent: “in the way that the teacher showed her.” In careful prose, keeping tiel can make the relation clearer when another reading is possible.
Kiel also introduces equality comparisons and can appear in a phrase without a finite verb. Do not automatically label every kiel a relative:
Li laboras kiel tradukisto.
He works as a translator.
Here kiel tradukisto identifies a role; there is no relative clause. By contrast, the next kiel introduces a finite manner clause:
Li tradukis la dokumenton tiel, kiel petis la kliento.
He translated the document in the way the client requested.
And in an indirect question, kiel stands for unknown manner:
La kliento demandis, kiel li tradukis la teknikan terminon.
The client asked how he translated the technical term.
Relative kiel points back to a way; interrogative kiel supplies what the client wanted to know. The visible form is identical, so meaning and clause function decide.
Finite clauses choose their own tense and mood
The relative word introduces a clause; it does not make that clause tenseless. Choose -as, -is, or -os for the time viewed from the situation itself, not by copying the tense of the main clause:
Ŝi montris al ni la salonon, kie okazos la ceremonio morgaŭ.
She showed us the hall where the ceremony will take place tomorrow.
The showing happened in the past, but the ceremony remains future. Esperanto therefore keeps okazos rather than backshifting it mechanically. Volitive -u is also possible when the clause presents a desired manner:
Bonvolu klarigi ĝin tiel, kiel komencanto povu kompreni.
Please explain it in such a way that a beginner can understand.
In neutral speech and prose, do not omit the relative connector as English sometimes omits “when” or “that.” La tago ni renkontiĝis leaves two noun phrases beside each other without stating their relation; use la tago, kiam ni renkontiĝis.
Punctuation and information packaging
Place a relative clause next to its antecedent. A clause after la loko, la tempo, or la maniero normally flows from the general noun to the identifying or supplementary detail. Commas can help show the boundary, but Esperanto does not have a rigid English rule under which commas alone determine whether every relative is restrictive or nonrestrictive.
Fronting a temporal clause is neutral and common because it establishes a frame before the main event:
Kiam vi estos preta, voku min.
When you are ready, call me.
Fronting a manner clause is possible but more marked, especially in (formal) or (literary) prose. Keep the ordinary tiel ... kiel ... order when no special contrast is intended.
— Kie ni renkontiĝu? — Ĉe la stacidomo, kie haltas la flughavena buso.
— Where should we meet? — At the station where the airport bus stops.
The first kie is interrogative; the second is relative. This exchange shows why translation alone cannot identify the construction.
Common Mistakes
Omitting the relative word as English sometimes does
❌ Mi memoras la tagon ni translokiĝis ĉi tien.
Incorrect — the time noun and the finite clause need a connector.
✅ Mi memoras la tagon, kiam ni translokiĝis ĉi tien.
I remember the day when we moved here.
Using static kie for a directional role
❌ Tio estas la urbo, kie ili translokiĝos venontjare.
Incorrect in the intended directional reading — the move is toward the city.
✅ Tio estas la urbo, kien ili translokiĝos venontjare.
That is the city they will move to next year.
Using ke as a general relative connector
❌ Mi revenos en la semajno, ke la riparo estos finita.
Incorrect — ke introduces content, not a temporal relation to semajno.
✅ Mi revenos en la semajno, kiam la riparo estos finita.
I will return in the week when the repair is finished.
Confusing a manner clause with a professional role
❌ Ŝi nun laboras tiel, kiel pejzaĝa arkitekto.
Wrong if the intended meaning is her profession rather than a comparison of manners.
✅ Ŝi nun laboras kiel pejzaĝa arkitekto.
She now works as a landscape architect.
Copying English tense backshift
❌ Li montris al ni la hotelon, kie ni restus morgaŭ.
Incorrect if tomorrow's stay is a real future plan; -us makes it conditional.
✅ Li montris al ni la hotelon, kie ni restos morgaŭ.
He showed us the hotel where we will stay tomorrow.
Key Takeaways
Relative kie, kiam, and kiel reconnect a finite clause to a place, time, or manner that is explicit or understood. Preserve exact relations with kien, de kie, and preposition-plus-kiu forms where needed; distinguish relative words from identical interrogative forms by their information role; and let each relative clause choose its own tense and mood.
Related Topics
- Kie: The Question/Relative Place CorrelativeA1 — Use kie for location, kien for destination, and relative kie for clauses anchored to a place.
- Kiam: The Question/Relative Time CorrelativeA2 — Use kiam to ask when and to introduce time clauses, while distinguishing time points from duration, exact clock time, and conditions.
- Kiel: The Question/Relative Manner CorrelativeA2 — Use kiel to ask about manner and degree, introduce manner clauses, and make comparisons without confusing it with kia or kiom.
- Relative Clauses with KiuA2 — How kiu, kiuj, kiun, and kiujn introduce finite clauses that identify or describe people and things.
- Time ClausesA2 — Connect events in time with kiam, dum, ĝis, antaŭ ol, post kiam, de kiam, and related clause introducers.
- Manner ClausesC1 — How kiel- and kvazaŭ-clauses describe the way an action is performed, including real, instructed, and imagined manner.