Introduction
Understanding how to use atrás de in Portuguese helps you express both physical position and time in one simple phrase. This article explains the differences between behind and ago, shows correct sentence structure, and gives clear Brazilian Portuguese examples so you can start using atrás de confidently in everyday conversation.
What does atrás de mean?
Atrás de is a prepositional phrase in Portuguese that commonly appears in two main uses: to indicate spatial position (behind) and to mark a point in the past measured from the present (ago). Although the same words are used, context, verbs, and time expressions determine the meaning. Recognizing these cues is the key to correct comprehension and use.
Core meaning: spatial position
When atrás de indicates position, it answers the question onde, meaning where something or someone is located relative to another object. It is equivalent to behind or at the back of in English.
Structure: noun or pronoun + estar / ficar + atrás de + reference object.
Examples:
O carro está atrás de casa.
A cadeira ficou atrás de mesa.
Note that in Brazilian Portuguese, articles are often used with nouns: atrás da casa, atrás do carro. You can also use pronouns: atrás de mim, atrás de você.
Core meaning: time reference (ago)
When atrás de indicates time, it is used to say how long ago something happened. In this use, atrás can follow a time expression without the preposition de, but the combination atrás de appears in some constructions, especially with specific nouns or quantifiers. A more common, natural form for time is X tempo atrás (há X tempo is also common). Still, learners will encounter atrás de in colloquial speech and regional variants.
Structure: time expression + atrás or há + time expression. Example with atrás de: um ano atrás / há um ano. In some contexts, speakers may say dias atrás or semanas atrás; behind in literal sense would not fit here.
Using atrás de for physical location
When you want to describe where something is physically located, use atrás de with nouns, definite articles, and pronouns. The preposition de combines with the definite article to form contractions: de + o = do, de + a = da.
Contractions and articles
Portuguese commonly contracts de + article. Learn these forms because they are frequent in spoken and written Brazilian Portuguese.
Examples:
de + o = do
de + a = da
O cachorro está atrás do sofá.
A bicicleta ficou atrás da escola.
Using pronouns after atrás de
Use personal pronouns without contraction: atrás de mim, atrás de você, atrás dele, atrás dela, atrás de nós, atrás de vocês, atrás deles, atrás delas.
Examples:
Ele está atrás de mim.
A chave está atrás de você na bolsa.
Os livros ficaram atrás deles na estante.
Verbs commonly used with atrás de
Verbs that describe position or movement are often paired with atrás de. Estar (to be), ficar (to stay/remain), ficar localizado (to be located), and colocar (to put) are typical.
Examples:
A mochila está atrás da porta.
Ele colocou o presente atrás do sofá.
A loja fica atrás do restaurante.
Using atrás de to mean ago or time in the past
For time expressions, Brazilian Portuguese often prefers X atrás (no de). However, understanding how atrás de can appear in temporal contexts helps you recognize regional or colloquial usage.
Common temporal patterns
Most native speakers say time + atrás:
dois dias atrás
uma semana atrás
três anos atrás
Alternatively, the verb há indicates a period counting back from the present:
há dois dias
há uma semana
há três anos
Both forms are correct and widely used. Use há for a slightly more formal tone; use atrás for everyday speech.
When atrás de appears with time nouns
Although less common, you may hear constructions like atrás de um ano in colloquial speech. This construction often emphasizes the noun or is part of a longer phrase. It is more likely in combinations like muito atrás de or bem atrás de but is not the standard textbook form for expressing ago.
Examples where time + atrás is more natural:
Eu cheguei aqui dois anos atrás.
Eles se mudaram há seis meses.
A festa foi três dias atrás.
Differences between atrás de and atrás
Atrás alone can be used as an adverb, while atrás de is a prepositional phrase requiring an object. Understanding the distinction helps you construct sentences correctly.
Atrás as an adverb
When used alone, atrás means back or ago, depending on context. It does not need a noun after it.
Examples:
Volte para trás. (Go back.)
Três dias atrás nós comemoramos. (Three days ago we celebrated.)
Atrás de as a prepositional phrase
Atrás de must be followed by a noun or pronoun and indicates behind or at the back of.
Examples:
O gato está atrás do armário.
Há pessoas atrás de você. (There are people behind you.)
Common errors and how to avoid them
Portuguese learners often mix up atrás and atrás de or use incorrect contractions. Below are typical mistakes and simple corrections.
1. Omitting articles
Incorrect: O livro está atrás mesa.
Correct: O livro está atrás da mesa.
Always check if the noun requires an article and contract de + article when needed.
2. Using atrás de for all time expressions
Incorrect: Eu cheguei atrás de dois dias.
Correct: Eu cheguei dois dias atrás. or Eu cheguei há dois dias.
Prefer X atrás or há X tempo for time references.
3. Confusing atrás de with depois de
Incorrect: Eu nasci atrás de 1990.
Correct: Eu nasci em 1990. or Eu nasci há 30 anos.
Depois de means after, which is different from atrás de (behind/ago). Use depois de for sequences and actions that happen after something else.
Examples in real Brazilian Portuguese sentences
Below are practical sentences showing both spatial and temporal use. Notice contractions and word order.
Spatial examples:
O clima está quente, e a varanda fica atrás da sala.
As crianças estão brincando atrás do carro.
Coloque as malas atrás de nós no caminhão. (coloque as malas atrás de nós)
Temporal examples:
Eu terminei o relatório dois dias atrás.
Nós nos conhecemos há cinco anos.
Você viu o filme três semanas atrás?
Mixed contexts where context matters
Sometimes a sentence can contain potential ambiguity. Context and verb choice clarify whether atrás de is spatial or temporal.
Example:
Ela estava atrás de casa ontem.
Interpretation 1 (spatial): She was behind the house yesterday.
Interpretation 2 (less likely temporal): Colloquially, a listener might confuse this if time expressions are nearby, so prefer clearer phrasing for time: Ela esteve aqui ontem, há um ano atrás não é claro.
Useful phrases and collocations
Learning common phrases will speed comprehension and speaking ability.
Common spatial collocations:
atrás do sofá
atrás da escola
atrás de mim / você / ele / ela
Common temporal collocations:
dois dias atrás
um mês atrás
há muito tempo
Regional and colloquial notes
Brazilian Portuguese varies by region. In some informal settings, speakers might mix forms or favor atrás over há, or vice versa. Listening to native speakers from different regions and contexts will help you internalize preferred patterns. In written and formal contexts, use há for time and atrás de for physical position to be safe.
Practical tips for learners
1. Memorize contractions: do, da, dos, das. These are everywhere with atrás de when the reference is a definite noun.
2. Use há for formal time expressions and atrás for casual speech: há três anos vs três anos atrás.
3. Practice with location phrases first; they are more straightforward. Describe rooms, objects, and people to build confidence.
4. Pay attention to word order: time expressions usually come after the verb when using atrás for ago (Eu cheguei dois dias atrás).
Conclusion
Mastering atrás de means recognizing when it indicates physical location and when time expressions use atrás or há to express ago. Use atrás de with nouns and pronouns for behind, and prefer time + atrás or há + time for past intervals. With practice and attention to contractions and context, you will use these phrases naturally in Brazilian Portuguese conversations.
