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A2 verb 13 min read

corroborar

Practice it Examples Notes & Tips corroborar in 30 Seconds

Explanation corroborar in your Level:

At the A1 level, the word 'corroborar' might seem a bit advanced because it is a formal verb. However, it is useful to know because it looks very similar to the English word 'corroborate'. At this stage, you should simply recognize that it means 'to say yes' or 'to support an idea' in a very formal way. You don't need to use it in your daily conversations yet, but if you see it in a news headline, you can think of it as a fancy version of 'confirmar' (to confirm). For example, if a friend says 'I saw a blue bird' and you say 'I saw it too!', you are corroborating their story. In Portuguese, you would say 'Eu confirmo', but a news reporter would say 'Ele corroborou o relato'. Understanding this word early on helps you see the connection between English and Portuguese academic vocabulary, which often share Latin roots. It is a regular '-ar' verb, so it follows the same conjugation rules as 'falar' (to speak) or 'estudar' (to study). This makes it easy to handle if you ever need to use it. Just remember: 'corroborar' = 'confirmar' (but more formal). Focus on recognizing the 'co-' start and the 'robor' middle, which sounds like 'robust'. This will help you remember that the word is about making something stronger with proof. Even as a beginner, knowing these 'big' words can give you a boost in reading comprehension, especially when looking at official documents or news websites.

At the A2 level, you are starting to read more diverse texts, including short news clips and social media posts. 'Corroborar' becomes more relevant here. You should understand that it is used when there is evidence involved. It's not just a personal opinion; it's about facts. For instance, if you are learning about the past tense (Pretérito Perfeito), you might see sentences like 'A foto corroborou a história' (The photo corroborated the story). This level is where you should start distinguishing 'corroborar' from 'colaborar' (to collaborate). They sound similar, but they are different! 'Colaborar' is about working together, while 'corroborar' is about proving something. You can start using 'corroborar' in your writing practice to sound more formal, especially when discussing facts or findings. Instead of always saying 'Isso mostra que...', you can say 'Isso vem corroborar que...'. This small change makes your Portuguese sound much more mature. You should also notice that 'corroborar' usually doesn't need a preposition, so you say 'corroborar a informação' and not 'corroborar para a informação'. However, don't worry too much if you hear natives using 'com'; just try to learn the standard way first. By the end of A2, you should be comfortable seeing this word in a text and knowing exactly what it's doing: it's acting as a 'stamp of approval' from one piece of evidence to another.

At the B1 level, you are expected to handle more complex topics like work, current events, and personal opinions. 'Corroborar' is a great tool for your 'argumentative' toolkit. When you want to support your point of view with a fact, this is the perfect verb to use. You should be able to conjugate it in various tenses, including the Imperfect and the Future. For example, 'Se encontrarmos o documento, ele corroborará nossa versão' (If we find the document, it will corroborate our version). You will encounter 'corroborar' frequently in B1-level reading materials, such as articles about health, technology, or history. At this stage, you should also understand the noun form 'corroboração' (corroboration). You might hear phrases like 'Precisamos de corroboração' (We need corroboration). This level is also where you should be careful with synonyms. While 'confirmar' is still fine, using 'corroborar' shows you understand the nuance of 'evidence-based confirmation'. It's about building a case. If you are preparing for a job interview in Portuguese, using this word when discussing your achievements ('Meus resultados corroboram minha experiência') will impress the interviewer. It shows you have a professional vocabulary. You should also start noticing how it's used in the passive voice: 'A hipótese foi corroborada' (The hypothesis was corroborated). This is a common way to report information neutrally.

At the B2 level, you should have a firm grasp of 'corroborar' and be able to use it naturally in both speaking and writing. You are now exploring the 'Regência Verbal' in more detail and should know that 'corroborar' is primarily a transitive direct verb. You should be able to identify it in complex sentence structures, such as those using relative pronouns: 'Os dados, que corroboram a teoria anterior, foram publicados hoje' (The data, which corroborate the previous theory, were published today). At B2, you are likely reading more academic or professional texts where 'corroborar' is a staple. You should also be aware of its role in legal and journalistic discourse in different Lusophone countries. For example, in Portugal, the usage might be slightly more formal than in Brazil, but the meaning remains identical. You should also be able to use 'corroborar' to contrast with words like 'contradizer' (to contradict) or 'refutar' (to refute). For example: 'Enquanto alguns estudos corroboram essa ideia, outros a refutam' (While some studies corroborate this idea, others refute it). This ability to weigh different sides of an argument using precise vocabulary is a key skill at the B2 level. You should also be comfortable using 'corroborar' in the subjunctive mood, which is common in expressions of doubt or requirement: 'É necessário que as provas corroborem o depoimento' (It is necessary that the evidence corroborates the testimony).

At the C1 level, your use of 'corroborar' should be precise and sophisticated. You understand the subtle difference between 'corroborar', 'ratificar', and 'comprovar'. You know that 'corroborar' is about providing additional strength and support, often in a cumulative sense. You can use it in high-level academic writing or professional reports without hesitation. At this stage, you should also be familiar with the word's etymology—the Latin 'robur' (oak/strength)—and how that informs its meaning of 'strengthening' a claim. You can use 'corroborar' in complex rhetorical structures, such as 'Ainda que as evidências iniciais pareçam frágeis, os novos achados vêm corroborar a tese de forma incontestável' (Although the initial evidence seems fragile, the new findings come to corroborate the thesis in an incontestable way). You are also aware of the 'corroborar com' debate and can consciously choose the most appropriate form for your audience (direct transitive for formal writing, perhaps adding 'com' in very specific informal spoken contexts, though usually avoiding it). Your reading comprehension at C1 allows you to pick up on the tone that 'corroborar' sets—it adds a layer of authority and logical rigor to any text. You might also explore related terms like 'corroborativo' (corroborative) as an adjective, though it is less common than the verb or the noun.

At the C2 level, 'corroborar' is a simple but powerful tool in your vast linguistic arsenal. You use it with the same ease as a native speaker with a high level of education. You can appreciate its use in classical literature, legal statutes, and cutting-edge scientific papers. At this level, you might use 'corroborar' to discuss the philosophy of science (e.g., Karl Popper’s ideas on corroboration vs. verification). You understand that in a C2 context, 'corroborar' isn't just a synonym for 'confirmar'; it's a specific logical operation where a theory survives a test. You can use the word in extremely formal or even archaic contexts, perhaps pairing it with other rare verbs like 'roborar' for stylistic effect in specific types of legal or poetic prose. Your mastery of 'corroborar' includes a perfect understanding of its placement in sentences with complex clitic pronouns (though 'corroborar' rarely takes them, you'd know how to handle it if it did). You can also critique the use of the word in others' writing, noticing when it's used as 'filler' to sound smart vs. when it's the logically correct choice. At C2, you don't just know the word; you know the history, the controversy, and the stylistic power it holds within the entire Lusophone world, from Maputo to Macau, Lisbon to Luanda, and Brasília to Dili.

Practice it Examples Notes & Tips

corroborar in 30 Seconds

Corroborar is a formal Portuguese verb meaning to confirm or support a statement with evidence, adding strength to an argument or theory.
It is primarily used in legal, scientific, and journalistic contexts to indicate that independent findings align with a primary claim.
Grammatically, it is a regular -ar verb and is usually used as a direct transitive verb (corroborar algo), though 'corroborar com' is heard in speech.
It is a key academic word that helps distinguish between simple agreement (confirmar) and evidence-based validation (corroborar).

The Portuguese verb corroborar is a sophisticated and essential term for anyone looking to move beyond basic conversational Portuguese into the realms of academic, professional, or legal discourse. At its core, it means to confirm, support, or provide additional evidence for a statement, theory, or finding. While it shares a similar meaning with the more common word confirmar, corroborar carries a weight of formality and specific intent—it suggests that the support being provided adds 'strength' (from the Latin robur) to the original claim.

Formal Context: You will most frequently encounter this word in news reports, scientific journals, and legal proceedings. For instance, a journalist might say that a witness appeared to 'corroborar' the victim's story, meaning the witness provided details that made the story more believable and robust.

Os novos dados vêm corroborar a hipótese inicial do pesquisador.

Translation: The new data comes to corroborate the researcher's initial hypothesis.

In everyday life, though less common than in formal settings, it is used by speakers who wish to sound precise. If you are in a meeting and you want to agree with a colleague while emphasizing that your own experience supports what they said, you might use this verb. It signals that you aren't just agreeing out of politeness, but because you have independent information that aligns with their perspective. It is a transitive verb, meaning it usually takes a direct object—you corroborate *something*.

Scientific Usage: In science, one experiment is rarely enough. When a second laboratory achieves the same results, their findings 'corroboram' the first study. This is the cornerstone of the scientific method in the Lusophone world.

As testemunhas oculares puderam corroborar o depoimento do motorista.

Understanding corroborar also requires distinguishing it from its 'false friend' colaborar. While they sound similar, colaborar means to collaborate or work together. If you tell a judge you want to 'colaborar' with the court, you are saying you want to help. If you say you want to 'corroborar' a fact, you are saying you want to prove it true. Native speakers occasionally slip up, but a learner who uses corroborar correctly immediately demonstrates a high level of linguistic competence and attention to detail.

Nuance of Evidence: Unlike 'confirmar', which can be a simple 'yes', 'corroborar' implies the presence of external evidence or a secondary source that validates the first. It is the act of making a statement stronger through verification.

Não há provas suficientes para corroborar a denúncia.

O exame de DNA serviu para corroborar a paternidade.

Vários estudos independentes corroboram essa teoria climática.

Finally, remember that corroborar is a regular -ar verb. This makes it very easy to conjugate once you know the stem. In the present tense, it follows the pattern of falar: eu corroboro, você corrobora, nós corroboramos. This regularity combined with its high-level impact makes it a 'low-effort, high-reward' word for intermediate students. Whether you are reading a newspaper like O Globo or Folha de S.Paulo, or listening to a podcast about history, you will find this word acting as a pillar of logical argumentation.

Using corroborar correctly requires understanding its role as a transitive verb. In most cases, it is followed directly by the object it is confirming. However, in modern Brazilian Portuguese, you might occasionally hear 'corroborar com', though many grammarians still prefer the direct construction. Let's look at how this word functions across different grammatical structures and contexts to ensure you can use it with confidence.

The Simple Transitive Pattern: The most standard use is: [Subject] + corroborar + [Object]. Here, the object is usually a statement, a theory, a version of events, or a suspicion. Example: 'As evidências corroboram sua história' (The evidence corroborates your story).

O relatório final não conseguiu corroborar as acusações de corrupção.

When using corroborar in the past tense, it often describes the outcome of an investigation or a discovery. 'A pesquisa corroborou o que já suspeitávamos' (The research corroborated what we already suspected). Notice how it links a current finding to a previous belief, acting as the bridge of verification. This usage is vital for anyone writing reports or summaries of findings in Portuguese.

Passive Voice Usage: In formal writing, the passive voice is frequently used to sound objective. 'A teoria foi corroborada por diversos experimentos' (The theory was corroborated by several experiments). This shifts the focus from the people to the evidence itself.

Sua versão dos fatos precisa ser corroborada por outra fonte.

Another common structure involves using the infinitive after auxiliary verbs like 'vir' (to come) or 'poder' (to be able to). 'Os fatos vêm corroborar a nossa tese' (The facts come to corroborate our thesis). This adds a sense of progression—as if the evidence is arriving to settle the matter. It is a very common rhetorical device in Portuguese argumentative essays.

Negative Constructions: To say evidence does not support a claim, simply add 'não'. 'Os resultados não corroboram a ideia de que o café faz mal'. This is a polite but firm way to debunk a myth or a false claim in a professional setting.

Nenhum dos documentos parece corroborar essa afirmação.

Espero que estas fotos possam corroborar o que eu disse.

O juiz pediu mais provas para corroborar a sentença.

In summary, corroborar is your go-to verb when you want to talk about validation and support in a serious way. Whether you are using it in the present to state a general truth, in the past to discuss historical evidence, or in the future to express a need for verification, the structure remains consistent. It elevates your Portuguese from a basic conversational level to a more analytical and professional register.

You might be wondering if corroborar is a 'dictionary word' that no one actually says. The truth is, while you won't hear it much at a casual Sunday barbecue or a football match, it is extremely common in specific spheres of Brazilian and Portuguese life. Understanding these contexts will help you recognize the word when it flashes across a screen or resonates in a lecture hall.

The Evening News (Jornalismo): If you watch 'Jornal Nacional' or 'SIC Notícias', you will hear 'corroborar' almost every night. News anchors use it to describe how one piece of information supports another. 'Imagens de câmeras de segurança corroboram o relato da vítima' is a classic headline structure. It provides a level of journalistic distance and objectivity.

O perito criminal disse que os vestígios corroboram a cena do crime.

Academic settings are another prime location for this word. In Brazilian universities (Universidades Federais) or the University of Coimbra, professors and students use corroborar when discussing research. When writing a thesis (TCC or dissertação), you don't just 'agree' with an author; you use your findings to corroborar their theories. It is a hallmark of the 'Linguagem Acadêmica' (Academic Language) that students are expected to master.

Legal and Judicial Proceedings: The legal system in Lusophone countries is heavily based on written documentation and formal testimony. Lawyers (advogados) and judges (juízes) use 'corroborar' to discuss the validity of evidence. A witness's testimony is only valuable if there is something else to 'corroborar' what they said. This is often referred to as 'corroboração de provas'.

O juiz afirmou que não havia elementos para corroborar a acusação.

In the corporate world, specifically in high-level meetings or annual reports, corroborar is used to justify business decisions. 'Os lucros do último trimestre corroboram nossa estratégia de expansão' (Last quarter's profits corroborate our expansion strategy). It sounds much more professional and data-driven than saying the profits 'show we were right'.

Documentaries and Podcasts: If you enjoy Portuguese-language documentaries about history or nature, listen for this word. Narrators use it when archaeological finds or biological observations support existing knowledge. It helps build a narrative of discovery and truth-seeking.

Estas descobertas arqueológicas corroboram os textos antigos.

O depoimento do vizinho veio corroborar o álibi do suspeito.

Os dados do IBGE corroboram o crescimento da inflação.

In short, while corroborar is not a 'street' word, it is a 'public' word. It is the language of the news, the courtroom, the laboratory, and the boardroom. Mastering it allows you to participate in and understand the most important conversations happening in Portuguese-speaking societies.

Even for native speakers, corroborar can be a bit of a linguistic trap. Because it is a 'high-register' word, people sometimes misuse it in an attempt to sound more intelligent. For a learner, these mistakes are even easier to make. Let's break down the most common pitfalls so you can avoid them and sound like a pro.

Confusion with 'Colaborar': This is the #1 mistake. 'Colaborar' means to work together (co-labor). 'Corroborar' means to confirm. Because they sound similar and both start with 'co-', people often swap them. You don't 'corroborar' with a team on a project; you 'colaborar' with them. Conversely, you don't 'colaborar' a theory; you 'corroborar' it.

Errado: Eu vou corroborar com o projeto.
Correto: Eu vou colaborar com o projeto.

Another common issue is the 'Regência Verbal' (verb government). As mentioned before, traditional Portuguese grammar dictates that corroborar is a direct transitive verb. This means it doesn't need a preposition like 'com'. However, many people say 'corroborar com a ideia'. While this is increasingly accepted in casual speech, it is still considered an error in formal writing and exams. Always try to say 'corroborar a ideia' to be safe.

Using it for People instead of Statements: You generally corroborate 'things' (statements, facts, theories), not 'people' directly. While you might say 'I corroborate him' in English, in Portuguese, it sounds better to say 'Eu corroboro o depoimento dele' (I corroborate his testimony) or 'Eu corroboro o que ele disse' (I corroborate what he said).

Estranho: Ele me corroborou.
Melhor: Ele corroborou as minhas palavras.

There is also the risk of 'over-formalizing'. Because corroborar is a strong word, using it for trivial things can sound sarcastic or unintentionally funny. If your friend says they like pizza and you say 'Eu corroboro a sua opinião', it sounds like you're a judge in a courtroom rather than a friend at a dinner table. In these cases, stick to 'concordo' or 'também acho'.

Misspelling (Double R): Pay attention to the spelling. It has two 'r's in the middle: co-rro-bo-rar. Forgetting one 'r' changes the pronunciation and is a spelling error. The double 'r' in Portuguese has a strong, throaty sound (in many accents) or a strong trill, which is key to its identity.

Atenção: Não escreva 'coroborar'. O correto é corroborar.

As estatísticas corroboram a necessidade de mudança.

O vídeo corroborou que ele estava em casa naquela hora.

Lastly, don't confuse it with comprovar. While very similar, comprovar is often used when the evidence is definitive (like a receipt or a DNA test). Corroborar is more about adding support to an existing idea. If you have the 'smoking gun', you 'comprovar' the crime. If you have a witness who saw the person nearby, they 'corroborar' the suspicion.

To truly master corroborar, you need to know its neighbors. Portuguese is a rich language with many ways to express 'agreement' or 'verification'. Choosing the right one depends on the level of formality and the specific nuance you want to convey. Here are the most common alternatives and how they compare to corroborar.

Confirmar vs. Corroborar: 'Confirmar' is the universal word. You confirm a flight, a dinner reservation, or a fact. It is neutral. 'Corroborar' is specialized; it's confirming something by adding new, supporting strength. Use 'confirmar' for daily life and 'corroborar' for arguments and evidence.

Eu confirmo minha presença. (NOT corroborar)

Another close relative is ratificar. This is often used in legal and official contexts, meaning 'to formally validate' or 'to confirm an agreement'. For example, a parliament 'ratifica' a treaty. While corroborar is about evidence, ratificar is about authority and official status. If you say 'ratificar', you are making something official.

Validar and Legitimar: 'Validar' is common in technology and logic (e.g., validating a password). 'Legitimar' is used when something becomes 'legitimate' or 'legal'. You might say a popular vote 'legitima' a leader's power. Corroborar doesn't make something legal; it just makes it more likely to be true.

O teste serve para validar o sistema.

In more literary or very formal speech, you might find convalidar or roborar (the shorter root of corroborar). Roborar is quite rare today and mostly found in old legal texts. Convalidar is used when an act that was previously invalid becomes valid through some new circumstance. These are 'bonus' words for those aiming for a C2 level of proficiency.

Apoiar and Sustentar: If you want a simpler way to say 'corroborar', you can use 'apoiar' (to support) or 'sustentar' (to sustain/hold up). 'As evidências apoiam a teoria' is a perfectly good, slightly less formal way to express the same idea as 'As evidências corroboram a teoria'.

Esses argumentos sustentam a nossa posição.

O depoimento dele ratifica o acordo anterior.

A ciência busca comprovar os fatos objetivamente.

Finally, consider the verb reiterar. This means to repeat or restate something to emphasize it. While not a direct synonym for 'corroborar', it is often found in the same contexts. 'O diretor reiterou seu apoio ao projeto' (The director reiterated his support for the project). Understanding these subtle differences is what makes a student transition from 'speaking Portuguese' to 'mastering the Portuguese language'.

How Formal Is It?

Fun Fact

The root 'robur' refers to the oak tree, known for its extreme hardness and strength. So, when you corroborate something, you are essentially 'making it as strong as an oak'.

Pronunciation Guide

UK ko-ʁo-bo-ˈɾaʁ

US ko-xo-bo-ˈɾa(h)

The stress is on the last syllable: raR.

Rhymes With

elaborar colaborar renovar falar estudar comprovar ratificar pensar

Common Errors

Pronouncing it like 'colaborar' (co-la-bo-rar).
Forgetting the double 'r' sound in the middle.
Stressing the second-to-last syllable instead of the last.
Pronouncing the 'o's too openly (they are usually closed /o/).
Mixing up the 'r' sounds (the first is strong, the second is a light tap).

Difficulty Rating

Reading 4/5

Common in news and books, but requires knowing the context of evidence.

Writing 6/5

Requires correct 'regência' (no preposition) and double 'r' spelling.

Speaking 5/5

Tricky 'r' sounds and formal tone can be hard to master naturally.

Listening 4/5

Easily confused with 'colaborar' if listening quickly.

What to Learn Next

Prerequisites

confirmar provar verdade história falar

Learn Next

ratificar refutar evidenciar sustentar depoimento

Advanced

hermenêutica jurisprudência espectrográfico paradigmático

Grammar to Know

Regência Verbal

Corroborar é VTD (Verbo Transitivo Direto). Ex: Corroborar o fato.

Double R rules

Double 'r' is used between vowels to maintain the strong sound. Ex: co-rro-borar.

Regular -ar verbs

Eu corroboro, Tu corroboras, Ele corrobora...

Passive voice with 'ser'

A tese foi corroborada pelos dados.

Subjunctive for doubt/possibility

Espero que as provas corroborem a verdade.

Examples by Level

Eu posso corroborar o que você disse.

I can corroborate what you said.

Simple present tense with auxiliary verb 'poder'.

A foto corrobora a história.

The photo corroborates the story.

Third person singular, present tense.

Eles corroboram a nossa ideia.

They corroborate our idea.

Third person plural, present tense.

Você corrobora o meu relato?

Do you corroborate my account?

Interrogative sentence, second person singular.

Nós corroboramos os fatos.

We corroborate the facts.

First person plural, present tense.

O vídeo corrobora tudo.

The video corroborates everything.

Subject 'O vídeo' is singular.

Ela quer corroborar a verdade.

She wants to corroborate the truth.

Infinitive form after 'querer'.

Isso corrobora o plano.

This corroborates the plan.

Demonstrative pronoun 'Isso' as subject.

O testemunho corrobora a versão do motorista.

The testimony corroborates the driver's version.

Direct object 'a versão'.

As provas não corroboram o crime.

The evidence does not corroborate the crime.

Negative sentence using 'não'.

O médico corroborou o diagnóstico anterior.

The doctor corroborated the previous diagnosis.

Pretérito Perfeito (Simple Past).

Vários estudos corroboram este resultado.

Several studies corroborate this result.

Plural subject 'Vários estudos'.

As câmeras corroboraram o álibi dele.

The cameras corroborated his alibi.

Pretérito Perfeito, third person plural.

O relatório veio corroborar nossas suspeitas.

The report came to corroborate our suspicions.

Peripheral verb construction 'veio corroborar'.

É importante corroborar cada detalhe.

It is important to corroborate every detail.

Impersonal expression 'É importante'.

Os vizinhos corroboraram o barulho estranho.

The neighbors corroborated the strange noise.

Verb agrees with 'Os vizinhos'.

Os dados estatísticos corroboram a eficácia da vacina.

Statistical data corroborate the vaccine's efficacy.

Use of technical vocabulary 'estatísticos', 'eficácia'.

Se as provas corroborarem a denúncia, haverá punição.

If the evidence corroborates the complaint, there will be punishment.

Future Subjunctive 'corroborarem'.

O perito foi chamado para corroborar as marcas no chão.

The expert was called to corroborate the marks on the floor.

Passive voice 'foi chamado'.

Ninguém pôde corroborar o que aconteceu naquela noite.

No one could corroborate what happened that night.

Negative pronoun 'Ninguém' as subject.

As novas descobertas corroboram a teoria da evolução.

New discoveries corroborate the theory of evolution.

Scientific context.

Espero que os documentos corroborem sua inocência.

I hope the documents corroborate your innocence.

Present Subjunctive 'corroborem'.

O artigo corrobora a visão de outros especialistas.

The article corroborates the view of other specialists.

Professional context.

Suas ações corroboram o seu compromisso com a empresa.

Your actions corroborate your commitment to the company.

Abstract subject 'Suas ações'.

A análise laboratorial veio corroborar a presença de toxinas.

The laboratory analysis came to corroborate the presence of toxins.

Compound tense with 'veio'.

Não existem elementos suficientes para corroborar tal afirmação.

There are not enough elements to corroborate such an assertion.

Use of 'tal' as a demonstrative adjective.

O depoimento da testemunha chave corrobora a tese da defesa.

The key witness's testimony corroborates the defense's thesis.

Legal terminology 'tese da defesa'.

Os resultados obtidos corroboram a literatura científica atual.

The results obtained corroborate current scientific literature.

Past participle 'obtidos' as an adjective.

A investigação visa corroborar a denúncia de fraude.

The investigation aims to corroborate the fraud allegation.

Verb 'visar' + infinitive.

Caso os fatos não corroborem a história, o contrato será anulado.

In case the facts do not corroborate the story, the contract will be voided.

Conditional 'Caso' + Subjunctive.

As evidências físicas corroboram os relatos verbais colhidos.

Physical evidence corroborates the verbal reports collected.

Adjective 'colhidos' agreeing with 'relatos'.

O historiador buscou documentos que corroborassem sua hipótese.

The historian sought documents that would corroborate his hypothesis.

Imperfect Subjunctive 'corroborassem'.

A fenomenologia da obra corrobora a intenção estética do autor.

The phenomenology of the work corroborates the author's aesthetic intention.

High-level academic/philosophical vocabulary.

Tais achados corroboram a necessidade de uma revisão paradigmática.

Such findings corroborate the need for a paradigmatic revision.

Formal adjective 'paradigmática'.

A jurisprudência atual corrobora a decisão tomada pelo magistrado.

Current jurisprudence corroborates the decision made by the magistrate.

Legal term 'jurisprudência'.

Os indícios, embora circunstanciais, corroboram a linha de investigação.

The clues, though circumstantial, corroborate the line of investigation.

Concessive clause 'embora circunstanciais'.

Resta saber se a prática corroborará as promessas de campanha.

It remains to be seen if practice will corroborate campaign promises.

Expression 'Resta saber se'.

O autor utiliza diversas citações para corroborar seu argumento central.

The author uses several citations to corroborate his central argument.

Analysis of literary/academic style.

A estabilidade econômica corrobora a eficácia das medidas adotadas.

Economic stability corroborates the effectiveness of the measures adopted.

Abstract socio-economic context.

Nada parece corroborar a ideia de que houve dolo na ação.

Nothing seems to corroborate the idea that there was intent in the action.

Legal term 'dolo' (intent/malice).

A robustez do sistema é corroborada pela ausência de falhas críticas.

The robustness of the system is corroborated by the absence of critical failures.

Passive voice with agent 'pela ausência'.

O novo paradigma científico corrobora as intuições dos filósofos pré-socráticos.

The new scientific paradigm corroborates the intuitions of pre-Socratic philosophers.

Interdisciplinary connection.

A hermenêutica do texto corrobora a tese de que houve interpolação tardia.

The hermeneutics of the text corroborates the thesis that there was late interpolation.

Technical term 'hermenêutica' and 'interpolação'.

As flutuações do mercado corroboram a volatilidade prevista pelos algoritmos.

Market fluctuations corroborate the volatility predicted by the algorithms.

Financial/Mathematical context.

Faz-se mister que novas evidências venham corroborar o que foi outrora afirmado.

It is necessary that new evidence comes to corroborate what was previously stated.

Archaic/Very formal expression 'Faz-se mister'.

O silêncio do réu não deve ser interpretado como um fator a corroborar a culpa.

The defendant's silence should not be interpreted as a factor corroborating guilt.

Complex legal principle.

A análise espectrográfica corroborou a composição química da estrela.

Spectrographic analysis corroborated the chemical composition of the star.

Advanced scientific terminology.

Sua conduta ilibada corrobora a confiança que todos depositam nele.

His irreproachable conduct corroborates the trust that everyone places in him.

Formal adjective 'ilibada'.

Common Collocations

corroborar a tese

corroborar o depoimento

corroborar a suspeita

corroborar a versão

corroborar a hipótese

corroborar as evidências

corroborar a denúncia

corroborar um fato

corroborar a eficácia

corroborar a opinião

Common Phrases

Vir corroborar

— To come to corroborate. Used to show that new info supports an old idea.

Este documento vem corroborar o que eu disse.

Servir para corroborar

— To serve to corroborate. Indicates the purpose of a piece of evidence.

As fotos servem para corroborar o álibi.

Não conseguir corroborar

— To fail to corroborate. Used when evidence is insufficient.

A polícia não conseguiu corroborar a história.

Corroborar ponto por ponto

— To corroborate point by point. Total and detailed confirmation.

Ela corroborou o relato ponto por ponto.

Elementos para corroborar

— Elements (evidence) to corroborate.

Temos elementos para corroborar a acusação.

Fatos que corroboram

— Facts that corroborate.

Há fatos que corroboram essa mudança.

Corroborar integralmente

— To corroborate entirely.

O laudo corrobora integralmente a versão oficial.

Dificuldade em corroborar

— Difficulty in corroborating.

Houve dificuldade em corroborar os dados antigos.

Corroborar a veracidade

— To corroborate the truthfulness.

O juiz quer corroborar a veracidade dos fatos.

Corroborar a existência

— To corroborate the existence.

Novos fósseis corroboram a existência da espécie.

Often Confused With

corroborar vs colaborar

Means to cooperate or work together. Sound-alike error.

corroborar vs comprovar

Means to prove definitively. Corroborar is more about supporting.

corroborar vs celebrar

Means to celebrate. Only vaguely similar in sound, but beginners sometimes trip.

Idioms & Expressions

"Corroborar em gênero, número e grau"

— To agree or confirm in every possible way (borrowed from grammar).

Eu corroboro sua decisão em gênero, número e grau.

informal/humorous

"Assinar embaixo"

— Literally 'to sign underneath', meaning to fully support/corroborate someone's view.

O que ele disse é verdade, eu assino embaixo.

informal

"Dar fé"

— To attest or give credit to, acting as a corroborating witness.

Eu dou fé de que ele estava lá.

neutral/formal

"Bater o martelo"

— To strike the gavel; to finalize a decision based on corroboration.

As provas corroboraram a culpa e o juiz bateu o martelo.

neutral

"Pôr a mão no fogo"

— To put one's hand in the fire; to trust someone so much you corroborate them blindly.

Eu ponho a mão no fogo por ele; o que ele diz, eu corroboro.

informal

"Cair como uma luva"

— To fit like a glove; when evidence corroborates a theory perfectly.

Este documento caiu como uma luva para corroborar nossa tese.

informal

"Não deixar margem para dúvidas"

— To leave no room for doubt; when corroboration is absolute.

A prova corrobora o fato e não deixa margem para dúvidas.

formal

"Fazer coro"

— To join the chorus; to corroborate something many others are already saying.

Os especialistas fizeram coro para corroborar o perigo do vírus.

neutral

"Preto no branco"

— Black on white; when something is clearly corroborated in writing.

Está aqui, preto no branco, para corroborar o que eu disse.

informal

"Matar a cobra e mostrar o pau"

— To kill the snake and show the stick; to prove/corroborate something undeniably.

Ele matou a cobra e mostrou o pau corroborando sua inocência.

informal/regional

Easily Confused

corroborar vs colaborar

Similar prefix 'co-' and ending '-borar'.

Colaborar is social/work-related (working together). Corroborar is logical/legal (confirming with proof).

Nós vamos colaborar no projeto, mas as provas vão corroborar nossa ideia.

corroborar vs confirmar

They share the same basic meaning of 'saying yes'.

Confirmar is general and can be subjective. Corroborar requires external evidence or support.

Eu confirmo que vou à festa, mas o GPS corrobora que eu estive lá.

corroborar vs ratificar

Both are formal ways of confirming.

Ratificar is about formalizing an agreement or authority. Corroborar is about strengthening a claim with evidence.

O governo ratificou o pacto após os estudos corroborarem sua viabilidade.

corroborar vs comprovar

Both deal with truth and evidence.

Comprovar is the end result (definitive proof). Corroborar is the process of adding support.

O DNA comprova o crime, enquanto as fibras corroboram a presença do réu.

corroborar vs reiterar

Both involve repeating or strengthening a point.

Reiterar is just repeating what was said. Corroborar is adding new info to support it.

Ele reiterou o pedido e o recibo corroborou que ele já havia pago.

Sentence Patterns

[Sujeito] + corroborou + [Objeto]

O médico corroborou o exame.

As provas vêm + corroborar + [Objeto]

As provas vêm corroborar a denúncia.

[Objeto] + foi corroborado por + [Agente]

O fato foi corroborado por todos.

Não há nada que + [Subjuntivo]

Não há nada que corrobore isso.

Tais achados + corroboram + [Substantivo abstrato]

Tais achados corroboram a necessidade de ação.

A corroborar + [Objeto], temos + [Evidência]

A corroborar o relato, temos as fotos.

Faz-se necessário + corroborar + [Objeto]

Faz-se necessário corroborar a hipótese.

[Sujeito], ao corroborar [Objeto], [Ação]

O autor, ao corroborar a tese, mudou o debate.

Word Family

Nouns

corroboração (corroboration)

corroborador (one who corroborates)

Verbs

corroborar (to corroborate)

Adjectives

corroborado (corroborated)

corroborativo (corroborative)

corroborante (corroborating)

robusto

robustez

roborar

corroboração

vigor

How to Use It

frequency

High in formal/professional contexts, low in casual speech.

Common Mistakes

Using 'corroborar' when you mean 'colaborar'. → Eu vou colaborar com o grupo.
'Colaborar' is to work together; 'corroborar' is to confirm with evidence.
Always using 'corroborar com'. → Isso corrobora a minha teoria.
In formal Portuguese, the verb is transitive direct (no preposition).
Spelling it as 'coroborar'. → Corroborar.
It needs the double 'r' to maintain the correct sound and spelling.
Using it for simple agreements. → Eu confirmo que vou jantar.
Using 'corroborar' for trivial things sounds unnatural and overly formal.
Confusing it with 'comprovar'. → O teste comprova o resultado.
'Comprovar' is for definitive proof; 'corroborar' is for supporting evidence.

Tips

Upgrade your writing

In academic papers, replace 'confirmar' with 'corroborar' to sound more professional.

Watch the 'com'

Remember that 'corroborar' usually doesn't need a preposition. Say 'corroborar a tese'.

Strong R

Don't be afraid to make the double 'R' sound strong. It's the heart of the word.

Evidence check

Only use 'corroborar' when there is some kind of proof or second opinion involved.

Robust Robot

Think of a 'Robust Robot' confirming its data to remember 'corroborar'.

News watching

Watch the evening news in Portuguese to hear 'corroborar' used in its natural habitat.

Double R, Single B

Many learners try to double the 'B', but only the 'R' is doubled: co-RR-o-B-o-rar.

Professionalism

Using this word in a job interview shows you have 'high-level' Portuguese skills.

Switch it up

If you use 'confirmar' in one sentence, use 'corroborar' in the next to avoid repetition.

Not for parties

Avoid using it for casual social plans, or you might sound like a lawyer.

Memorize It

Mnemonic

Think of a 'ROBOT' that is 'ROBUST'. A robot needs data to 'COR-ROBOR-ATE' its decisions so it stays strong and doesn't crash.

Visual Association

Imagine a judge stamping a document with a giant oak tree stamp. The oak (robur) makes the document strong (corroborar).

Word Web

Confirmar Provar Evidência Teoria Fatos Testemunha Dados Robusto

Challenge

Try to find three news articles today (in Portuguese) that use the word 'corroborar' and write down the objects they are corroborating.

Word Origin

From the Latin 'corroborare', which is formed by the prefix 'com-' (intensive) and 'roborare' (to make strong), from 'robur' (oak, strength).

Original meaning: To strengthen, to invigorate, to make robust.

Romance (Latin root).

Cultural Context

No specific sensitivities, but avoid using it sarcastically with people who might feel you are questioning their honesty.

English speakers often use 'back up' or 'confirm'. 'Corroborate' is an exact cognate but feels slightly more common in Portuguese news than 'corroborate' does in casual English news.

Legal dramas like 'O Mecanismo' (Netflix) often use this term during investigation scenes. Scientific reports from 'Fiocruz' frequently use it regarding vaccine research. Academic papers by Paulo Freire might use related concepts of validation.

Practice in Real Life

Real-World Contexts

Courtroom

Corroborar o depoimento
Provas que corroboram
Corroboração de testemunhas
Fatos corroborados

Science Lab

Corroborar a hipótese
Dados que corroboram
Resultados corroborados
Corroborar o estudo

Journalism

Fontes corroboram
Vídeos corroboram
Corroborar a versão
Informação corroborada

Business Meeting

Os números corroboram
Corroborar a estratégia
Relatórios corroboram
Corroborar a visão

History Class

Documentos corroboram
Achados corroboram
Corroborar o registro
Teoria corroborada

Conversation Starters

"Você tem alguma evidência que possa corroborar essa sua ideia?"

"Quais dados nós temos para corroborar o sucesso do projeto?"

"Você acha que o vídeo vai corroborar a versão dele dos fatos?"

"Como podemos corroborar essa informação antes de publicá-la?"

"Existe algum estudo que corrobore o que você está dizendo?"

Journal Prompts

Escreva sobre uma vez em que alguém corroborou uma história sua e como você se sentiu.

Descreva um fato científico que você conhece e mencione quais provas o corroboram.

Se você fosse um juiz, que tipo de evidência você exigiria para corroborar uma acusação?

Pense em uma notícia recente. Como os jornalistas corroboraram as informações apresentadas?

Escreva um parágrafo argumentativo sobre o clima, usando o verbo 'corroborar' pelo menos duas vezes.

Frequently Asked Questions

10 questions

You can, but it might sound a bit stiff or overly formal. It's like using the word 'corroborate' or 'substantiate' in English while hanging out at a bar. It's better to use 'confirmar' or 'concordar' in casual settings.

In formal grammar, no. It should be 'corroborar algo' (transitive direct). However, in Brazil, 'corroborar com' is very common in speech. If you are writing an exam, avoid the 'com'.

'Comprovar' is stronger; it means to provide definitive proof. 'Corroborar' means to provide supporting evidence that makes a theory more likely to be true.

In most of Brazil, it sounds like a strong 'H' in English (like 'hot'). In Portugal and some parts of Brazil, it's a uvular or trilled 'R'. It's a strong sound that comes from the throat.

The noun is 'corroboração' (corroboration). For example: 'Não há corroboração para esse fato'.

Yes, it is extremely common in Portuguese journalism. You will see it daily in newspapers like 'Folha de S.Paulo' or 'Público'.

Usually, you corroborate a statement, a version, or a theory. If you want to support a person, it's better to say 'corroborar o que ele disse' or 'corroborar seu depoimento'.

The best opposites are 'contradizer' (to contradict), 'refutar' (to refute), or 'desmentir' (to deny).

Yes! They both come from the Latin 'robur', meaning strength or oak. Corroborating is literally making an argument 'robust'.

It is always 'corroborar' with two 'R's. The double 'R' is necessary for the correct pronunciation and spelling.