Portuguese Prepositions Explained: Complete Guide
Introduction to Portuguese Prepositions
Prepositions are essential connecting words that establish relationships between elements in a sentence. When you learn Portuguese prepositions, you gain the ability to express location, time, direction, manner, and countless other relationships between words. Understanding Portuguese prepositions explained clearly is crucial because they work differently than in English—they contract with articles, change meaning in context, and follow specific patterns that every learner must master.
In Portuguese, prepositions are invariable words, meaning they don't change form based on gender or number. However, they frequently combine with definite and indefinite articles to form contractions, which is one of the unique features of the language.
Formation: Portuguese Prepositions and Their Contractions
The most common Portuguese prepositions are: de (of, from), em (in, on, at), a (to, at), por (by, through, for), para (to, for), com (with), sem (without), sobre (on, about), entre (between), and até (until, to).
Understanding how to use prepositions in Portuguese requires knowing their contractions with articles:
| Preposition | + o (the, masc.) | + a (the, fem.) | + os (the, masc. pl.) | + as (the, fem. pl.) |
|---|---|---|---|---|
| de (of, from) | do | da | dos | das |
| em (in, on) | no | na | nos | nas |
| a (to, at) | ao | à | aos | às |
| por (by, through) | pelo | pela | pelos | pelas |
These prepositions also contract with indefinite articles:
| Preposition | + um (a, masc.) | + uma (a, fem.) | + uns (some, masc.) | + umas (some, fem.) |
|---|---|---|---|---|
| de | dum | duma | duns | dumas |
| em | num | numa | nuns | numas |
Usage: When and How to Use Portuguese Prepositions
Each preposition has specific uses that don't always translate directly from English. Here's how to use prepositions in Portuguese correctly:
DE (of, from)
- Origin: Eu sou de Lisboa. (I am from Lisbon.)
- Possession: O carro do João. (João's car / The car of João.)
- Material: Uma mesa de madeira. (A wooden table.)
- Part of a whole: Um copo de água. (A glass of water.)
EM (in, on, at)
- Location: Estou em casa. (I am at home.)
- Time periods: Em janeiro. (In January.)
- Transportation: Vou de carro. but Vou no carro do meu pai. (I go by car / I go in my father's car.)
A (to, at)
- Direction/destination: Vou ao mercado. (I'm going to the market.)
- Time: Às oito horas. (At eight o'clock.)
- Distance: A dois quilômetros daqui. (Two kilometers from here.)
PARA vs. A (both mean "to")
Para implies permanence or longer duration, while a suggests temporary movement:
- Vou para o Brasil. (I'm going to Brazil—to live/stay long term.)
- Vou ao Brasil. (I'm going to Brazil—for a visit.)
POR (by, through, for)
- Movement through: Passei pela cidade. (I passed through the city.)
- Reason/cause: Fiz isso por amor. (I did it for love.)
- Agent in passive voice: O livro foi escrito por ela. (The book was written by her.)
- Exchange: Comprei por dez euros. (I bought it for ten euros.)
Examples: Portuguese Prepositions in Context
Here are practical examples showing Portuguese prepositions explained in real sentences:
- O livro está em cima da mesa.
The book is on top of the table. - Ela trabalha das nove às cinco.
She works from nine to five. - Estou a pensar em ti. (European Portuguese) / Estou pensando em você. (Brazilian Portuguese)
I am thinking about you. - Ele saiu sem dizer nada.
He left without saying anything. - Vamos falar sobre o projeto.
Let's talk about the project. - A reunião é entre as duas e as três.
The meeting is between two and three. - Fico aqui até amanhã.
I'll stay here until tomorrow. - Obrigado pela ajuda.
Thank you for the help.
Common Mistakes with Portuguese Prepositions
When learners study how to use prepositions in Portuguese, they often make these errors:
- Forgetting contractions: Saying "em o" instead of "no" or "de a" instead of "da." Contractions are mandatory in Portuguese, not optional.
- Confusing "para" and "por": Both can translate to "for" in English, but para indicates purpose or destination (Isto é para você – This is for you), while por indicates cause or exchange (Obrigado por tudo – Thank you for everything).
- Using "em" instead of "a" for destinations: In Portuguese, you go ao cinema (to the cinema), not no cinema. Use em for where you are, a for where you're going.
- Direct translation from English: "Interested in" becomes interessado em, but "married to" becomes casado com (married with). Each verb has its own preposition that must be memorized.
- Omitting prepositions with verbs: Many Portuguese verbs require prepositions that English verbs don't: gostar de (to like), precisar de (to need), pensar em (to think about), sonhar com (to dream about).
- Mixing up "a" and "à": The accent in à indicates a contraction (a + a), used before feminine nouns. Vou à praia (I go to the beach) uses the contraction, while Vou a pé (I go on foot) does not.
Mastering prepositions takes practice, but understanding these patterns will significantly improve your Portuguese fluency. Pay attention to how native speakers use prepositions in context, and don't be afraid to make mistakes—they're part of the learning process.