B2 Expression Formal 7 min read

Tendo como base observação

Regarding the observação

Literally: Having as base observation

In 15 Seconds

  • Used to justify opinions based on visual evidence.
  • Common in professional meetings and academic writing.
  • Signals analytical thinking and attention to detail.
  • Usually followed by the preposition 'de' and an article.

Meaning

This phrase is a sophisticated way to say that your opinion isn't a random guess, but something rooted in what you've actually seen. It carries a vibe of careful analysis and intellectual honesty, suggesting you've done the 'homework' of watching a situation unfold before speaking. It feels professional, grounded, and slightly authoritative without being arrogant.

Key Examples

3 of 10
1

Job interview explaining a strategy

Tendo como base a observação do mercado, decidi focar em vendas online.

Based on market observation, I decided to focus on online sales.

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>
2

Analyzing social media trends

Tendo como base a observação dos algoritmos, postar às 18h é melhor.

Based on the observation of algorithms, posting at 6 PM is better.

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
3

At a formal board meeting

Tendo como base a observação dos custos, precisamos cortar gastos.

Based on the observation of costs, we need to cut expenses.

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>
🌍

Cultural Background

The phrase reflects the Portuguese-speaking world's strong tradition of formal rhetoric and academic precision. In Brazil and Portugal, being able to articulate a thought using structured, multi-word expressions is often seen as a sign of high education and 'repertório' (cultural vocabulary). It stems from a legalistic and scientific culture where 'observação' was the primary tool for social and physical study before the digital data boom. It exists because the language values the distinction between a 'feeling' and a 'documented sight.'

🎯

The 'A' Factor

Always remember the 'a' before 'observação'. Without it, you sound like a text-to-speech robot from 2005. 'Tendo como base a observação' is the smooth, natural way to say it.

⚠️

Don't Overuse in Slack

If you use this for every tiny detail in a casual chat, your coworkers might think you're being pretentious. Save it for the moments when you actually want to sound authoritative.

In 15 Seconds

  • Used to justify opinions based on visual evidence.
  • Common in professional meetings and academic writing.
  • Signals analytical thinking and attention to detail.
  • Usually followed by the preposition 'de' and an article.

What It Means

You’re sitting in a meeting and someone asks for your opinion. You don’t want to sound like you’re just pulling ideas out of thin air. That is exactly where tendo como base a observação comes in to save your reputation. It basically means 'Based on what I have observed' or 'Using my observations as a foundation.' It tells people that you have been paying attention. It signals that your conclusion is built on evidence, not just a gut feeling. It has a very solid, trustworthy weight to it. Think of it as the linguistic equivalent of showing your work in a math problem. You aren't just giving the answer; you are showing the path you took to get there.

How To Use It

Using this phrase is like building a bridge between a fact and a conclusion. You usually start with the phrase and then follow it with what you observed. Most of the time, you will need to add the article a (the) before observação. So it becomes tendo como base a observação de.... For example, tendo como base a observação do mercado (based on market observation). It works perfectly at the beginning of a sentence to set the stage. You can also use it in the middle to justify a point you just made. It is a bit like using a 'source' in an essay. It’s the 'because' that makes your 'therefore' sound way more impressive. Just don't use it for super obvious things, or you'll sound like a robot.

Formality & Register

This phrase definitely leans toward the formal side of the street. You probably won't hear a teenager scream this at a concert. It lives happily in business meetings, academic papers, and serious news reports. However, it’s not so stiff that you can't use it with friends when discussing something serious. If you’re debating a TV show plot, it adds a hilarious layer of fake seriousness. On LinkedIn, it’s absolute gold. It makes you sound like a 'thought leader' rather than just a guy with a keyboard. It’s the kind of phrase that gets you a nod of approval from a boss. It says 'I am a professional who notices details.'

Real-Life Examples

Imagine you are a UX designer reviewing a new app. You might say, tendo como base a observação dos usuários, o botão está confuso. This sounds much better than 'the users don't like the button.' Or think about a travel vlogger talking about a busy city. Tendo como base a observação do trânsito, recomendo usar o metrô. It’s practical advice backed by visual evidence. Even in a simple WhatsApp group, you could use it. Tendo como base a observação da previsão do tempo, o churrasco vai melar. It adds a touch of dramatic flair to your rainy-day prediction. It’s about elevating your speech just enough to be taken seriously. Plus, it’s a great way to avoid saying 'I think' for the hundredth time.

When To Use It

Use it whenever you need to justify an opinion with visual data. It’s perfect for job interviews when explaining how you solved a problem. Use it when writing a report or a feedback email to a colleague. It is also great for social media captions that try to be insightful. If you are a teacher giving feedback to a student, this phrase is your best friend. It makes the critique feel objective rather than personal. Use it when you want to sound smart but also grounded in reality. It’s the perfect 'smart person' shortcut. It’s also very useful in scientific contexts or data analysis. It basically screams 'I have data!'.

When NOT To Use It

Do not use this for your basic physical needs or emotions. Saying tendo como base a observação da minha barriga, estou com fome is just weird. Nobody talks like that unless they are trying to be a comedian. Avoid it in super casual, fast-paced texting where 'pelo que eu vi' (from what I saw) works better. It’s too heavy for a quick 'Where are you?' text. Also, don't use it if you haven't actually observed anything. If you’re just guessing, people will catch on, and the phrase will backfire. It requires real 'observação' to work. Don't be that person who uses big words to hide a lack of knowledge. It’s a tool for clarity, not for confusion.

Common Mistakes

One major trap is forgetting the preposition or the article. ✗ Tendo base observação → ✓ Tendo como base a observação. Without como, the sentence falls apart like a wet cake. Another mistake is mixing up base with básico. ✗ Tendo como básico a observação is just wrong. You are looking for a foundation, not a beginner level. Some people also try to use em base de. ✗ Tendo em base de observação → ✓ Com base na observação. Stick to the standard formula to avoid sounding like a translated manual. Remember, tendo is a gerund, so it implies an ongoing or established state. Don't try to force it into a past tense that doesn't exist. Keep it simple, keep it structured, and you'll be fine.

Common Variations

You can swap a few words to change the vibe slightly. Com base na observação is a slightly shorter, very common alternative. If you want to sound even more formal, try Partindo da observação de que.... For a more casual spin, use Pelo que eu observei... or Baseado no que eu vi. In Portugal, you might hear Tendo por base... instead of como base. Both are perfectly fine, but como is more universal across the Lusophone world. There’s also Tomando como base..., which feels a bit more active. Each variation has its own tiny flavor, but they all serve the same master. It’s like choosing between different shades of blue for your shirt.

Real Conversations

M

Manager

Por que você acha que devemos mudar a cor do site?
D

Designer

Tendo como base a observação do comportamento dos usuários, o azul atual não converte.
M

Manager

Entendi, os dados mostram isso mesmo?
D

Designer

Sim, eles ignoram o botão de compra completamente.

Friend 1: Cara, você acha que o João e a Maria terminaram?

Friend 2: Tendo como base a observação dos stories dela, ele sumiu do mapa.

Friend 1: Pois é, ela apagou todas as fotos com ele.

Friend 2: É, o clima pesou de vez.

Quick FAQ

Is it too formal for texting? Yes, usually, unless you are being ironic or talking about something serious. Can I use it in a romantic context? Maybe if you're analyzing your partner's behavior like a scientist (not recommended!). Does it require a comma? Yes, usually, if it starts the sentence, follow it with a comma after the observation clause. Is 'observação' always singular? Not necessarily, you can say tendo como base observações preliminares for multiple sightings. Can I use 'visto' instead? You could say tendo em vista..., but that means 'considering' rather than 'based on observation.' It’s a subtle but important difference in focus.

Usage Notes

This phrase is a hallmark of B2-level proficiency. It requires proper use of the gerund and definite articles. Use it in professional or structured environments to build credibility for your arguments.

🎯

The 'A' Factor

Always remember the 'a' before 'observação'. Without it, you sound like a text-to-speech robot from 2005. 'Tendo como base a observação' is the smooth, natural way to say it.

⚠️

Don't Overuse in Slack

If you use this for every tiny detail in a casual chat, your coworkers might think you're being pretentious. Save it for the moments when you actually want to sound authoritative.

💬

The 'Rhetoric' Charm

Brazilians especially love 'repertório'. Using phrases like this shows you have a high level of literacy, which can be a massive social and professional asset in Lusophone cultures.

💡

Pair it with 'De Que'

If you want to follow it with a full sentence, use 'de que'. For example: 'Tendo como base a observação de que o dólar subiu...' (Based on the observation that the dollar rose...).

Examples

10
#1 Job interview explaining a strategy
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

Tendo como base a observação do mercado, decidi focar em vendas online.

Based on market observation, I decided to focus on online sales.

Shows the candidate makes data-driven decisions.

#2 Analyzing social media trends
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Tendo como base a observação dos algoritmos, postar às 18h é melhor.

Based on the observation of algorithms, posting at 6 PM is better.

Modern context using technical 'observation'.

#3 At a formal board meeting
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

Tendo como base a observação dos custos, precisamos cortar gastos.

Based on the observation of costs, we need to cut expenses.

High formality, used to propose a serious action.

#4 Discussing a Netflix series with a friend
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Tendo como base a observação do último episódio, ele é o assassino.

Based on what I saw in the last episode, he's the killer.

Using a formal phrase for a fun, casual debate.

#5 Explaining a scientific finding
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

Tendo como base a observação das células, notamos uma mutação.

Based on the observation of the cells, we noticed a mutation.

Traditional scientific usage.

#6 Instagram caption about travel
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4.318 6.318a4.5 4.5 0 000 6.364L12 20.364l7.682-7.682a4.5 4.5 0 00-6.364-6.364L12 7.636l-1.318-1.318a4.5 4.5 0 00-6.364 0z"/></svg>

Tendo como base a observação deste pôr do sol, a vida é bela.

Based on this sunset, life is beautiful.

Poetic and slightly dramatic usage for social media.

#7 A humorous take on a messy room
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Tendo como base a observação dessa bagunça, você não limpa nada há anos!

Based on this mess, you haven't cleaned anything in years!

Uses formal structure for a playful insult.

#8 Giving feedback on a project
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

Tendo como base a observação do seu progresso, você merece um bônus.

Based on the observation of your progress, you deserve a bonus.

Positive reinforcement in a corporate setting.

Common grammar error Common Mistake
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

✗ Tendo base observação que o tempo fechou → ✓ Tendo como base a observação de que o tempo fechou.

Having base observation that weather closed -> Based on the observation that the weather turned.

Shows the missing 'como' and 'a' articles which are essential.

Preposition confusion Common Mistake
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

✗ Tendo em base de observação os dados → ✓ Tendo como base a observação dos dados.

Having in base of observation the data -> Having the observation of data as a basis.

Learners often mix up 'com base em' and 'tendo como base'.

Test Yourself

Complete the phrase with the missing word.

✓ Correct! ✗ Not quite. Correct answer: como

The standard construction is 'Tendo como base', where 'como' establishes the relationship.

Fix the missing article.

✓ Correct! ✗ Not quite. Correct answer:

In Portuguese, you generally need the definite article 'a' before 'observação' in this context.

Which sentence sounds most natural in a business report?

Choose the best formal option:

✓ Correct! ✗ Not quite. Correct answer: Tendo como base a observação das tendências, prevemos crescimento.

This option uses the correct formal structure and professional vocabulary ('tendências', 'prevemos').

🎉 Score: /3

Visual Learning Aids

Formality Scale of 'Observation' Phrases

Casual

Quick observation with friends

Pelo que eu vi...

Neutral

Standard office talk

Com base na observação...

Formal

Reports or speeches

Tendo como base a observação...

Very Formal

Legal or scientific papers

Partindo da premissa da observação...

Where to use 'Tendo como base a observação'

Evidence-Based Speech
📊

Corporate Meeting

Presenting quarterly results

🎓

Academic Writing

Writing a thesis chapter

💼

Job Interview

Explaining your logic

🎤

News Reporting

Journalist describing a scene

📱

Product Review

Critiquing an app's UI

Tendo como base vs. Others

Tendo como base
Emphasis Foundation/Evidence
Vibe Analytical
Tendo em vista
Emphasis Goal/Objective
Vibe Strategic

Grammar Components

⚙️

Verbal Part

  • Tendo (Gerund)
  • Tomando
  • Partindo
🏗️

Foundation

  • Base
  • Alicerce
  • Fundamento
👁️

Input

  • Observação
  • Análise
  • Estudo

Practice Bank

3 exercises
Complete the phrase with the missing word. Fill Blank beginner

Tendo ___ base a observação do trânsito, vamos chegar atrasados.

✓ Correct! ✗ Not quite. Correct answer: como

The standard construction is 'Tendo como base', where 'como' establishes the relationship.

Fix the missing article. Error Fix intermediate

Find and fix the mistake:

Tendo como base observação do professor, o teste foi difícil.

✓ Correct! ✗ Not quite. Correct answer: Tendo como base a observação do professor, o teste foi difícil.

In Portuguese, you generally need the definite article 'a' before 'observação' in this context.

Which sentence sounds most natural in a business report? Choose advanced

Choose the best formal option:

✓ Correct! ✗ Not quite. Correct answer: Tendo como base a observação das tendências, prevemos crescimento.

This option uses the correct formal structure and professional vocabulary ('tendências', 'prevemos').

🎉 Score: /3

Frequently Asked Questions

18 questions

Not quite. You almost always need the definite article 'a' before 'observação' to make it 'Tendo como base a observação'. Using it without the article sounds like a shorthand title in a scientific paper rather than natural speech.

Yes, 'Tendo por base' is a very common and perfectly correct variation. It is especially common in European Portuguese, though both 'como' and 'por' are understood and used in Brazil as well.

It is generally too formal for fast, casual settings like yelling to a friend across the street or ordering a beer. Use it when you are explaining a thought process or providing feedback that requires a bit of weight.

'Baseado em' is more direct and slightly more common in everyday speech. 'Tendo como base a observação' is more descriptive and emphasizes the *process* of watching or analyzing before reaching a conclusion.

It implies you have evidence, but it doesn't necessarily mean absolute certainty. It suggests that *given what you saw*, this is your conclusion. It's an intellectually honest way to present a viewpoint.

Yes, you can say 'Tendo como base a observação do seu comportamento' (Based on observing your behavior). However, be careful as this can sound a bit like you are treating the person like a lab rat!

It's a B2 phrase because it involves a complex gerund structure and specific preposition usage. While B1 learners can use it, they might struggle with the flow, but it's a great 'power move' to learn early.

Yes, if the phrase opens a sentence, you should usually place a comma after the entire introductory clause. For example: 'Tendo como base a observação, percebi que...' helps with the rhythm of the sentence.

In this specific phrase, 'observation' works well, but 'what I noticed' or 'visual assessment' often captures the vibe better in English. It's about the act of seeing and noting details.

Absolutely! Adding 'minha' (my) makes it slightly more personal while keeping the formal structure. It clarifies that *you* were the one doing the watching, which adds personal accountability to the statement.

There isn't a direct slang equivalent, but 'Pelo que eu vi' or 'No meu olhar' are the much more relaxed ways to say the same thing. Slang would probably just be 'Tô vendo que...' (I'm seeing that...).

It’s rare. Usually, it’s an introductory or parenthetical phrase. Putting it at the end might sound like an afterthought: 'O resultado foi esse, tendo como base a observação.' It works, but it's less impactful.

Just change 'a observação' to 'as observações'. For example: 'Tendo como base as observações feitas na semana passada...' (Based on the observations made last week...). This is very common in research.

Yes, it is perfectly natural in Portugal. As mentioned, 'Tendo por base' might be slightly more frequent there, but 'Tendo como base' is used in news, law, and business throughout the country.

You can replace it with 'Tomando' (Taking) or 'Com' (With). 'Com base na observação' is the most frequent alternative. 'Tendo' specifically gives it a more 'established state' feel that sounds very professional.

Yes, it is excellent for emails to a boss. It shows you are analytical and that your suggestions are not just random thoughts, which builds your professional credibility significantly.

Very much so. Journalists use it to link their reporting to the evidence they gathered on the ground. It helps them maintain an objective tone while presenting their findings to the public.

No, 'observação' specifically implies sight or monitoring. If you heard something, use 'Tendo como base o que ouvi' or 'Com base no relato'. Don't confuse the senses, or you'll lose the logic!

Related Phrases

🔄

Com base em

synonym

Based on

It is the more common, slightly less formal way to state the foundation of an idea.

😊

Pelo que observei

informal version

From what I observed

This is much more natural for everyday speech while keeping the 'seeing' element.

🔗

Tendo em vista

related topic

Considering / In light of

Often confused with the target phrase, but focuses on goals or future considerations instead of past observations.

👔

Partindo do princípio que

formal version

Starting from the principle that

Used for abstract logical foundations rather than physical observations.

🔗

Baseado em fatos reais

related topic

Based on real facts

A very common phrase used in movies that shares the same foundational 'base' logic.

Was this helpful?

Comments (0)

Login to Comment
No comments yet. Be the first to share your thoughts!