Portuguese Phrase
Quero marcar um horário.
Meaning
This sentence literally means “I want to book a time slot.” It is used when you need to arrange a meeting, a doctor’s visit, a haircut, or any service that requires a scheduled time. The structure is straightforward: a verb of desire + infinitive + article + noun.
When to use
Use it in both formal and informal contexts when you are speaking to a receptionist, a service provider, or even a friend you need to set up a meeting with. It works well in phone calls, in‑person conversations, or written messages.
✦Grammar Breakdown
Queromarcarumhorário
Quero (querer)
First‑person singular of the verb *querer* in the present indicative, meaning “I want”.
marcar
Infinitive verb meaning “to book, to schedule, to set”. It follows a verb of desire like *querer*.
um
Indefinite article (masculine, singular) used before a masculine noun.
horário
Masculine noun meaning “time slot, appointment, schedule”. The stress is on the second syllable: ho‑RÁ‑rio.
🗨In Conversation
Quero marcar um horário.
I’d like to schedule an appointment.
Claro, para que dia e horário prefere?
Sure, which day and time do you prefer?
✕Common Mistakes
Quero marcar horário.
The indefinite article *um* is required before *horário*.
Quero marcar um horáio.
The accent is on the second syllable: *horário*, not *horáio*.
Quero marcar um horário?
Use a period for a statement; a question mark changes the meaning to a request for confirmation.
↔Alternatives
Gostaria de marcar um horário.
I would like to schedule an appointment.
Preciso agendar um horário.
I need to book a time slot.
Posso marcar um horário?
May I book an appointment?
Cultural Tip
In Brazil, it is common to say *marcar um horário* when dealing with clinics, salons, or government offices. If you want to sound more formal, you can use *agendar* instead of *marcar*. Remember that the article *um* is required; omitting it (*marcar horário*) sounds abrupt and is considered a mistake by native speakers.

