How to Say 'I Don't Understand' in English: 18 Natural Phrases

The simplest way to say you do not understand in English is “I don't understand” /aɪ doʊnt ˌʌndərˈstænd/. It is correct in almost every situation, but English speakers often choose a softer phrase that explains what they need: repetition, a slower explanation, a definition, or an example. Saying exactly what is unclear makes conversations easier for everyone.

English is used by roughly 1.5 billion people worldwide when first- and second-language speakers are counted, according to Ethnologue. It has official or special status across dozens of countries, so clarification habits vary by region, workplace, and relationship. Still, the phrases below work reliably in international English conversations.

If you are also building your basic conversation toolkit, start with natural English greetings. Knowing how to ask for clarification is just as useful as knowing how to introduce yourself.

Choose the phrase based on the problem

“I don't understand” can mean several different things. Maybe you did not hear the speaker. Maybe you heard every word but do not know one expression. Or perhaps the explanation is too fast or the reasoning is confusing.

A useful rule is simple: name the problem, then ask for the solution. This is more effective than repeating “I don't understand” several times.

This is a pragmatic skill, not only a grammar skill. Brown and Levinson’s work on politeness explains why indirect requests often protect both speakers’ social comfort. A phrase such as “Could you clarify that?” signals cooperation, while “That makes no sense” can sound confrontational.

The most useful phrases

I don't understand.

“I don't understand” /aɪ doʊnt ˌʌndərˈstænd/ is clear, neutral, and safe. It works when a teacher gives an instruction, a stranger gives directions, or a coworker explains a task.

Use it when the entire message is unclear. Add a question afterward if possible, because the speaker may not know whether to repeat, slow down, or give an example.

I don't quite understand.

“I don't quite understand” /aɪ doʊnt kwaɪt ˌʌndərˈstænd/ is a softer version. The word “quite” reduces the force of the statement: you may understand part of the message, but not enough to respond confidently.

This phrase is excellent in professional settings. It avoids sounding as if the speaker has failed completely, while still asking for help.

I'm not following.

“I’m not following” /aɪm nɑt ˈfɑloʊɪŋ/ means you cannot follow the sequence of an explanation, argument, story, or calculation. It does not usually mean that you failed to hear someone.

Imagine a colleague explaining five steps in a project. You understand each individual word, but you cannot see how step three leads to step four. “I’m not following” is the natural response.

Could you say that again, please?

“Could you say that again, please?” /kʊd ju seɪ ðæt əˈɡɛn pliz/ asks for repetition. You probably missed the sound, were distracted, or could not hear clearly because of background noise.

Do not use this phrase if you heard the sentence but did not understand its meaning. In that case, “Could you explain that again?” is better.

English learners often need this distinction while working with numbers, dates, prices, and addresses. For extra practice with number pronunciation, see our guide to numbers in English.

Could you explain that another way?

“Could you explain that another way?” /kʊd ju ɪkˈspleɪn ðæt əˈnʌðər weɪ/ asks the other person to change their explanation, not merely repeat it. This is one of the best phrases for school, work, and customer support.

You can also ask for an example: “Could you give me an example?” Examples turn abstract vocabulary into something concrete.

Celce-Murcia and her coauthors emphasize that successful communication involves interactional strategies, not only accurate individual sounds. A calm request for reformulation is one of those strategies: it repairs a misunderstanding before it becomes a larger problem.

Could you clarify what you mean?

“Could you clarify what you mean?” /kʊd ju ˈklærəfaɪ wʌt ju min/ is formal and precise. Use it when a statement is ambiguous, vague, or open to two meanings.

For example, if someone says, “We need this soon,” you could ask, “Could you clarify what you mean by soon?” You are not saying their English is wrong. You are asking for a usable detail.

This phrase is particularly valuable in written communication. In an email, write: “Could you clarify whether you need the report today or by Friday?” A specific alternative makes it easier to get a direct answer.

I don't get it.

“I don't get it” /aɪ doʊnt ɡɛt ɪt/ is common, relaxed, and conversational. It means “I don't understand,” but it is less appropriate for a formal meeting or an important email.

Use it with friends, classmates, siblings, or familiar coworkers. It is especially common after a joke, film plot twist, or confusing social-media post.

Many jokes depend on cultural references, double meanings, or pronunciation. Watching dialogue-rich scenes can help you notice when characters say “I don't get it” and how others explain the joke. Try the titles in our best movies to learn English guide and replay short scenes rather than watching passively.

Ask for the exact kind of help you need

When someone speaks too fast

Say “Could you speak a little more slowly?” /kʊd ju spik ə ˈlɪtəl mɔr ˈsloʊli/. This is polite, practical, and better than pretending you understand.

You can also say, “Would you mind slowing down a little?” /wʊd ju maɪnd ˈsloʊɪŋ daʊn ə ˈlɪtəl/. “Would you mind” is polite, though it is slightly more formal.

When you do not know a word

Ask “What does that mean?” /wʌt dʌz ðæt min/ or “What does ‘___’ mean?” The second version is ideal when one unfamiliar word blocks your understanding.

If you want spelling, ask “How do you spell that?” /haʊ du ju spɛl ðæt/. If you want pronunciation, say “How do you pronounce that?” /haʊ du ju prəˈnaʊns ðæt/.

This matters with informal vocabulary. A phrase can be understandable in a dictionary but unsuitable in a workplace or classroom. Our English slang guide explains many casual expressions, while the English swear words guide helps you recognize words that are best understood before you ever consider using them.

When an instruction has too many steps

Say “Could you walk me through it?” /kʊd ju wɔk mi θru ɪt/. This means: please explain the process step by step.

Another useful option is “Can we go over that one more time?” /kæn wi ɡoʊ ˈoʊvər ðæt wʌn mɔr taɪm/. It is warm and collaborative, making it useful with teachers and colleagues.

Phrases to avoid in polite situations

Some statements are grammatically possible but can sound rude because they place blame on the other person.

Pronunciation: make your request easy to hear

When asking for clarification, clarity matters more than sounding fast. Stress the key words in phrases such as “Could you SAY that aGAIN, please?” and “Could you exPLAIN that another WAY?”

English rhythm often reduces small words. In quick speech, “Could you” may sound close to /kʊdʒə/, and “that again” may blend together. You do not need to copy every reduction immediately. First, say the important words clearly and pause after your question.

A short pause also gives the other person time to respond. Avoid filling every silence with “um” or repeating the entire sentence. One clear request is enough.

A practical three-step response

Use this simple pattern whenever you get stuck:

1. Signal the problem: “Sorry, I don’t quite understand.”
2. Name what you need: “Could you explain the last step again?”
3. Check your understanding: “So, you want me to send it before noon, right?”

The third step is powerful because it prevents a second misunderstanding. It shows active listening and gives the speaker a quick chance to correct you.

You do not need perfect grammar before asking for help. In fact, asking a clear clarification question is one of the fastest ways to improve listening, vocabulary, and confidence in real English conversations.