How to say “I understand” and “I don’t understand” in Portuguese

Introduction

Learning how to say I understand and I don’t understand in Brazilian Portuguese is one of the first communication skills that helps learners participate in conversations, ask for clarification, and navigate everyday situations. This article explains the most common phrases, pronunciation tips, example dialogues, and practical advice for beginners.

Core phrases: I understand and I don’t understand

The two essential phrases to learn are Eu entendo for I understand and Eu não entendo for I don’t understand. These are polite, clear, and work in most contexts, from classrooms to shops.

Eu entendo — Use this when you grasp information, instructions, or a speaker’s point.

Eu não entendo — Use this to signal you did not understand and often prompt someone to repeat or rephrase.

Shorter, very common alternatives

Brazilian Portuguese has shorter, everyday ways to say the same ideas. These are especially useful in casual conversations or when you need a quick response.

Entendi — I got it / I understood. Common and informal. Often used after someone explains something.

Não entendi — I didn’t get it / I didn’t understand. Slightly less formal than Eu não entendo and very common in spontaneous speech.

Tá (short for Está) and Tudo bem are not direct replacements for understanding, but you’ll hear tá paired with entendi as confirmation, for example: entendi, tá.

When to use present tense vs past tense

Eu entendo and Eu não entendo are present tense and useful when describing current comprehension. Use them when you want to express an ongoing state.

Entendi and Não entendi are often interpreted as past or immediate perfect: I understood (just now) / I didn’t understand (just now). For many beginner situations, prefer these forms because they match conversational timing: someone says something, you respond with entendi or não entendi.

Polite and formal options

In formal situations, such as speaking with a teacher, clerk, or older person, you might prefer slightly more polite phrasing.

Desculpe, não entendi — Sorry, I didn’t understand. Use this to apologize before asking for repetition.

Poderia repetir, por favor? — Could you repeat, please? Pair this with não entendi for clarity.

Mais devagar, por favor — Slower, please. Use this when pace is the problem rather than vocabulary.

Practical vocabulary related to understanding

Knowing a few supporting words helps you specify what you did or did not understand.

entender — to understand

entendido — understood (adjective or past participle)

explicar — to explain

repetir — to repeat

devagar — slowly

palavra — word

significado — meaning

Useful short phrases and signs you might see

Below are short items you could encounter on signs, forms, or in messages. These are realistic and useful.

Entendi — I understood (as a quick confirmation in chat or on forms)

Não entendi a palavra — I didn’t understand the word

Pode explicar? — Can you explain?

Repetir, por favor — Repeat, please

Fale mais devagar — Speak more slowly

Example dialogues for beginners

Short dialogues help you see how these phrases appear in real interactions. Line breaks indicate natural pauses.

Conversation in a café:
Garçom: O pedido chegou. Você quer açúcar?
Cliente: Entendi, obrigado. — Here the customer uses Entendi to acknowledge the question

Classroom situation:
Aluno: Desculpe, não entendi a pergunta.
Professor: Posso explicar novamente? Você quer que eu fale mais devagar?
Aluno: Sim, por favor — The student uses Desculpe, não entendi and asks for a slower explanation

Asking for meaning:
Turista: O que significa essa palavra?
Local: Significa problema.
Turista: Entendi, obrigado — The tourist uses Entendi after the explanation

Pronunciation tips for beginners

Pronunciation can be the main barrier to being understood and to understanding others. Here are simple tips for the key phrases.

Eu entendo — Pronounce eu like eh-oo (blend them smoothly). Entendo sounds like /en-TEN-do/ with a nasal-ish e in the first syllable depending on the speaker. Stress is on the second syllable: TEN.

Entendi — en-TEN-dee. The final i sounds like ee in see.

Eu não entendo — não has a nasal vowel roughly like now but with nasalization. Practice saying não with a slightly open nasal vowel: nah-oong.

Common mistakes and how to avoid them

Beginners often make predictable errors. Knowing them helps you avoid confusion in conversation.

1. Using entendo when you mean entendi: If someone just explained something, use entendi to confirm you understood it at that moment. Eu entendo can sound like you are describing a general ability rather than an immediate comprehension.

2. Forgetting não: Leaving out não can reverse the meaning. Eu entendo vs Eu não entendo are opposites, so listen carefully for the negative.

3. Overusing desculpe: Apologizing is polite, but in many informal settings a simple não entendi is enough. Use desculpe when you truly want to soften the interruption.

Practice exercises for the classroom and self-study

Practice makes comprehension automatic. Try these simple exercises regularly.

Exercise 1: Listening and repeating. Watch a short Brazilian Portuguese clip (30–60 seconds). Pause after a sentence and say Entendi or Não entendi. Then repeat the sentence aloud.

Exercise 2: Role-play with a partner. One person gives directions to a nearby place. The other responds with Entendi or Pode repetir, por favor? Switch roles every two minutes.

Exercise 3: Write three dialogues you might use in real life: at a café, at a bus stop, at a store. Include at least one use of Entendi and one of Não entendi in each dialogue.

Real-life scenarios where these phrases help

Knowing how to say I understand and I don’t understand is useful in many common situations.

Transportation: Asking a driver or station staff for clarification about schedules. Example: Desculpe, não entendi o horário do próximo ônibus.

Shopping: Confirming sizes, prices, or return policies. Example: Entendi, posso pagar com cartão?

Restaurants: Confirming ingredients or how a dish is served. Example: Não entendi se o prato tem glúten.

Language class: Letting the teacher know when you need repetition. Example: Professor, pode repetir, por favor? Não entendi a última parte.

Quick reference cheat sheet

Save or print these short lines for quick review before travel or class.

Eu entendo — I understand (present)

Entendi — I understood / I got it

Eu não entendo — I don’t understand (present)

Não entendi — I didn’t understand

Desculpe, não entendi — Sorry, I didn’t understand

Pode repetir, por favor? — Can you repeat, please?

Mais devagar, por favor — Slower, please

Final tips to sound natural

Keep these practical suggestions in mind while practicing with native speakers or study partners.

1. Be concise. Native speakers appreciate quick signals like Entendi or Não entendi rather than long explanations.

2. Use polite softeners when interrupting. Start with Desculpe if you need to stop someone.

3. Mirror speech rate. If a speaker is fast, ask for Mais devagar, por favor. This is more effective than repeating loudly.

4. Combine phrases. Pair Não entendi with Pode repetir, por favor? for an immediate request.

Conclusion

Mastering how to say I understand and I don’t understand in Brazilian Portuguese gives beginners confidence in daily interactions, classes, and travel. Focus on the core phrases Eu entendo, Entendi, Eu não entendo, and Não entendi, learn a few polite add-ons like Desculpe, não entendi and Pode repetir, por favor?, and practice with short, realistic dialogues. These small steps make conversations smoother and learning faster.