French Phrase
Oui, on échange les principales devises.
Meaning
The speaker confirms that they exchange the major foreign currencies. It is a typical response you might hear at a bank, airport kiosk, or hotel front desk when a traveler asks about currency exchange services.
When to use
Use this sentence when a customer asks whether a service point can convert popular foreign currencies such as USD, EUR, GBP, or JPY. It works in formal settings (banks) and informal ones (tourist information desks).
✦Grammar Breakdown
Ouionéchangelesprincipalesdevises
Oui
Simple affirmation meaning 'yes'.
on
Impersonal pronoun that can mean 'we', 'people', or 'one' in everyday speech.
échange (verb)
Present tense, third‑person singular of 'échanger' – to exchange.
les
Definite article plural, agrees with the noun that follows.
principales
Adjective meaning 'main' or 'principal', agrees in gender (feminine) and number (plural) with 'devises'.
devises
Feminine plural noun meaning 'currencies' (foreign money).
🗨In Conversation
Est‑ce que vous échangez le dollar américain ?
Do you exchange US dollars?
Oui, on échange les principales devises.
Yes, we exchange the main currencies.
✕Common Mistakes
Oui, on échange les principal devises.
The adjective must agree in gender and number with *devises* (feminine plural), so it should be *principales*.
Oui, on échange les principales devise.
Both the article and the noun need to be plural: *les* and *devises*.
Oui, on échange le principales devises.
The article *le* is singular; it must be *les* for a plural noun.
↔Alternatives
Oui, nous échangeons les principales monnaies.
Yes, we exchange the main monies.
Oui, nous traitons les devises les plus courantes.
Yes, we handle the most common currencies.
Oui, nous changeons les devises majeures.
Yes, we change the major currencies.
Cultural Tip
In French‑speaking countries, the word *devises* specifically refers to foreign currencies, whereas *monnaie* can also mean 'coin' or 'money' in general. When speaking to a teller, using *devises* sounds more professional and is the term you’ll see on signage in banks and exchange bureaus.

