La interŝanĝo ne komenciĝos ĝis la butiko ricevos ĝin.

Interŝanĝo means exchange.

It is built from:

• inter- = between, mutual
• ŝanĝ = the root for change
• -o = noun ending

So interŝanĝo is literally something like a mutual change or an exchange.

This is a very common question.

• komenci = to begin something, to start something
• komenciĝi = to begin, to start, in the sense that the thing itself begins

The -iĝ- part often gives the idea become or start happening by itself / intransitive change.

So:

• La butiko komencos la interŝanĝon = The store will start the exchange
• La interŝanĝo komenciĝos = The exchange will begin

In your sentence, the exchange is the thing that begins, so komenciĝos is the natural choice.

-os is the Esperanto future tense ending.

So:

• komenciĝos = will begin
• ricevos = will receive

Esperanto tense endings are very regular:

• -as = present
• -is = past
• -os = future
• -us = conditional
• -u = command / jussive
• -i = infinitive

Ne means not.

In Esperanto, ne usually goes directly before the word it negates. Here it negates the verb phrase:

• La interŝanĝo komenciĝos = The exchange will begin
• La interŝanĝo ne komenciĝos = The exchange will not begin

So the sentence means that the exchange will not begin before a certain point.

Ĝis means until.

So:

• ne komenciĝos ĝis... = will not begin until...

It marks the limit point in time. The action in the main clause does not happen before that point.

This is an important difference between English and Esperanto.

In Esperanto, it is normal to use the tense that matches the actual time of the action, even after words like ĝis.

So if the receiving happens in the future, ricevos is perfectly normal:

• ĝis la butiko ricevos ĝin = until the store receives it

English often uses the present tense after until, when, before, etc., even when the meaning is future. Esperanto does not need to follow that English pattern.

So although English says receives, Esperanto can say ricevos because the event is future.

The -n ending marks the direct object in Esperanto.

• ĝi = it
• ĝin = it as the object of a verb

Here, the verb is ricevos = will receive, and the thing being received is it, so Esperanto uses the accusative:

• la butiko ricevos ĝin = the store will receive it

Without -n, it would not be grammatically correct here.

Ĝin means it, but by itself it does not tell you what the thing is. Its reference must come from context.

In a sentence like this, it probably refers to an item involved in the exchange, such as:

• a product
• a returned item
• a package

Esperanto pronouns work much like English here: ĝin is just it, and you understand what it means from the surrounding situation.

La is the definite article, meaning the.

So:

• La interŝanĝo = the exchange
• la butiko = the store

Esperanto uses la for definite nouns, much like English the. It does not change for gender, number, or case, so it stays la in both places.

Word-for-word, that is close to the Esperanto structure, but it is not natural English.

Natural English is:

• The exchange will not begin until the store receives it.

Esperanto and English organize future time a little differently in subordinate clauses. So when translating, it is better to use normal English rather than forcing the Esperanto structure into English.

The given word order is the most natural and neutral one:

• La interŝanĝo ne komenciĝos ĝis la butiko ricevos ĝin.

Because Esperanto marks objects with -n, word order is more flexible than in English. However, not every rearrangement sounds equally natural.

For example, you could emphasize another part, but the original sentence is clear and standard. A learner should treat this as the normal pattern:

• subject
• negation + verb
• time clause

A rough pronunciation guide:

• interŝanĝo ≈ in-ter-SHANG-jo

Important letters:

• ŝ sounds like English sh
• ĝ sounds like the j in judge
• ĵ would sound like the s in measure, but that letter is not in this word

So:

• ŝanĝ sounds roughly like shanj

Esperanto spelling is very regular, so each letter has a consistent sound.

Yes. Interŝanĝo is a general word for exchange and can be used in different contexts, such as:

• exchange of goods
• exchange of ideas
• exchange program
• exchange of messages

But in this sentence, because of the store receives it, the context strongly suggests a physical item, such as a returned product being processed for an exchange.