This free Duolingo English Test study guide walks through the highest-yield skills the rewards, organized by the four English skills it measures — Reading, Writing, Listening, and Speaking — with every task type and a clear explanation of the 10–160 score and its four .[1]
It is interactive, not a wall of text: every module has worked examples, strategy for each task type, labeled diagrams, and built-in flashcards, taught the way the DET is actually scored — clear, accurate language under time pressure on a test.
Read it skill by skill, then round out your prep with our practice questions and flashcards. The DET is accepted by thousands of universities worldwide and used much like IELTS or TOEFL; this guide teaches the current test, including the newer task.
Duolingo English Test Snapshot
| Detail | Duolingo English Test (DET) |
|---|---|
| Format | Computer-adaptive; online, at-home on the Duolingo desktop app |
| Length | About 1 hour (≈5 min onboarding + ≈45 min adaptive test + ≈10 min samples) |
| Questions | No fixed count — adaptive; every test is different |
| Scoring | Overall 10–160 in 5-point steps + 4 subscores |
| Subscores | Literacy, Comprehension, Conversation, Production |
| Proctoring | Remote; human proctors + AI review 75+ behaviors |
| Results | Certified in ~48 hours; valid 2 years |
| Fee | ~$70 USD (dated anchor — verify on the Duolingo site) |
The DET measures four skills — Reading, Writing, Listening, and Speaking — and weights them equally. Your overall 10–160 score is the average of those four, so a single weak skill can pull the whole score down. This guide teaches all four as four study modules.[1][2]
The overall score is the average of the four equally weighted skills.[2] Because each skill also feeds two of the four subscores, balanced ability across all four is what lifts the most subscores at once.
How the DET Is Built & Scored
The Duolingo English Test runs in three parts inside about an hour: a short onboarding, a graded , and two extended language samples. Only the adaptive section produces your number; the samples are sent to institutions for their own review.[1]
Check your ID, camera, and microphone, agree to the rules, and complete a quick environment scan. This part is not scored.
A mix of question types (Read and Complete, Listen and Type, Speak About the Photo, Read Then Speak, Interactive Reading/Listening/Writing/Speaking, and more) that adapt in difficulty. This produces your 10–160 score.
One extended Writing Sample and one extended Speaking Sample on an open prompt. These are sent to institutions for direct review.
Your test is reviewed by AI and human proctors. Certified results are released to you (and shareable for free) in about two days.
The test is computer-adaptive: after each item, a correct answer raises the difficulty of the next one and a wrong answer lowers it, so the test homes in on your true level in fewer questions. There is no fixed question count, and questions are drawn from a very large pool — so you can’t memorize the test, you have to build real skill.[1]
The 10–160 score and the four subscores
Your overall score sits on a 10–160 scale in 5-point increments and equals the average of your four individual skill scores (Reading, Writing, Listening, Speaking), rounded to the nearest 5.[2] On top of that, the DET reports four integrated subscores, each the average of the two skills it blends.
Reading + Writing skills — how well you read and write in English.
Fed by: Read & Complete, Interactive Reading, Read Then Write, Interactive Writing
Reading + Listening skills — how well you understand written and spoken English.
Fed by: Read & Complete, Listen & Type, Interactive Reading, Interactive Listening
Listening + Speaking skills — how well you understand and respond in real time.
Fed by: Listen & Type, Interactive Listening, Interactive Speaking, Read Then Speak
Writing + Speaking skills — how well you produce language at length.
Fed by: Write About the Photo, Speak About the Photo, Interactive Writing, Interactive Speaking
| Subscore | Measures | Average of |
|---|---|---|
| Literacy | Understanding and producing written language | Reading + Writing |
| Comprehension | Understanding spoken and written language | Reading + Listening |
| Conversation | Understanding and producing spoken language | Listening + Speaking |
| Production | Producing spoken and written language at length | Writing + Speaking |
Most tasks contribute to two subscores at once, because the DET deliberately tests skills in combination — the way real academic English works. The matrix below shows which task feeds which subscores.[3]
What your DET score means (CEFR, IELTS, TOEFL)
The DET score aligns to the and is published with rough IELTS and TOEFL comparisons. These help you set a target, but they are approximate — and each university sets its own required score, so always check your target program.[2]
Concordances are approximate and provided to help you set a target; institutions publish their own required scores.
Reading
Reading is one of the four equally weighted skills and feeds both the and subscores. The DET tests it through fast vocabulary checks, a c-test, and a multi-part interactive passage — so you need both broad word knowledge and the ability to read for meaning under time pressure.[1]
Read & Complete (the c-test)
is the DET’s : a short passage in which the second half of about every other word has been deleted, leaving the first letters and a blank. You type the missing letters to restore each word, using spelling and the meaning of the sentence around it. The opening sentence is usually shown in full to set the context.[1]
The winning technique is to read the whole passage first so context tells you what each word must be, then fill the gaps. There is partial credit and no penalty for a wrong guess over a blank, so attempt every word. Spelling counts — a restored word must be spelled correctly to earn the point.[4]
Read & Select + Fill in the Blanks
shows a list of letter strings and asks you to choose only the real English words. The list mixes genuine words with — invented strings that look plausible (like “plonish”) — so only true vocabulary knowledge, not guessing by appearance, gets it right. There can be any number of real words; don’t assume a fixed count.[1]
shows a sentence with one unfinished word; you type the missing letters to complete just that word, using context. Both tasks reward a broad, accurate vocabulary — built by reading widely so you recognize real words instantly.[4]
| Task | What you do | Strategy |
|---|---|---|
| Read and Select | Mark each string as a real word — yes or no | Always answer; watch for near-real fakes with small letter changes |
| Fill in the Blanks | Type the missing letters of one unfinished word | Read the whole sentence; use context to finish the word |
| Read and Complete (c-test) | Restore deleted second halves across a passage | Read it all first; attempt every gap; spell correctly |
Interactive Reading
chains several question types around one passage: Complete the Sentences (pick the best word for each blank), Complete the Passage (choose the sentence that best fills a gap), Highlight the Answer (drag to select the exact text that answers a question), Identify the Idea (choose the idea the passage expresses), and Title the Passage (pick the best title).[1]
These reward classic reading skills: use context clues for the word and sentence gaps; for Highlight the Answer be precise — highlighting a whole paragraph when a phrase is asked for is wrong; and for Identify the Idea and Title, weigh every option and choose the one that fits the of the whole passage, not one detail.[4]
Core Reading Skills
Underneath every reading task sit a handful of transferable skills. Finding the main idea — the single most important point — lets you title a passage and identify its idea.
Using (a definition, synonym, example, or contrast nearby) lets you fill gaps and infer unfamiliar words without stopping. And recognizing text structure (cause-and-effect, comparison, sequence) helps you predict what fits a blank.
| Skill | What it is | DET task it powers |
|---|---|---|
| Main idea | The single most important point of a passage | Identify the Idea, Title the Passage |
| Context clues | Nearby hints that reveal a word's meaning | Fill in the Blanks, Complete the Sentences, c-test |
| Supporting detail | A fact or example that backs up the main idea | Highlight the Answer |
| Inference | A conclusion the text implies but doesn't state | Identify the Idea, Interactive Listening |
| Vocabulary breadth | The range of real words you know on sight | Read and Select |
Checkpoint · Reading
Question 1 of 8
On the Duolingo English Test, which reading task gives the test taker a passage in which the second half of many words has been deleted, asking the reader to type the missing letters back in?
Writing
Writing is an equally weighted skill that feeds the and subscores. The DET tests it with quick photo descriptions, a two-step interactive task, and an extended Writing Sample — graded on content, organization, vocabulary, and grammar.[3]
Write About the Photo
In you have about one minute to type a description of an image. A strong response is grammatically correct, on topic, and accurate — it names real people, objects, and actions actually in the picture. Go beyond a label: a couple of complete sentences with detail (who, what, where) show more language and earn more.[4]
Interactive Writing & the Writing Sample
has two connected steps: write about a topic for five minutes, then write a three-minute follow-up based on a prompt generated from your first response (you can still see your first answer). Staying on topic across both steps is essential, because each step is graded on how well it addresses its prompt.[1]
The is a longer (3–5 minute) response on an open prompt. Unlike the adaptive tasks, its raw text is sent to institutions for direct review, so treat it like a short essay: a clear opinion or main point, organized paragraphs, varied vocabulary and sentence structure, logical transitions, and time left to proofread.[4]
| Task | Time | What it rewards |
|---|---|---|
| Write About the Photo | ~1 min | Accurate, complete-sentence description of the image |
| Interactive Writing | 5 min + 3 min | Two connected responses that each stay on the prompt |
| Writing Sample (sent to schools) | 3–5 min | An organized, developed short essay on an open topic |
Grammar & Mechanics
Grammar accuracy is scored in every written (and spoken) task, so the high-frequency rules pay off everywhere. Keep (a singular subject takes a singular verb — “The box of pens is”), use consistent and correct verb tenses, and place articles (a/an/the) correctly — a common error for many learners.
| Rule | Wrong | Right |
|---|---|---|
| Subject-verb agreement | The students writes | The students write |
| Verb tense consistency | Yesterday I go to class | Yesterday I went to class |
| Articles (a/an/the) | She is teacher | She is a teacher |
| Plural vs. singular | many informations | much information |
| Run-on sentences | It was late I left | It was late, so I left |
Structure, Coherence & Register
Beyond correctness, the DET rewards organization. Start a paragraph with a clear , then support it.
Link ideas with — however for contrast, therefore for a result, for instance for an example — matched to the actual relationship. And match your register to the task: the Writing Sample and an opinion prompt call for more formal, academic English than a casual note.
Checkpoint · Writing
Question 1 of 8
Which input device does a test taker use to produce their answer in the DET "Write About the Photo" task?
Listening
Listening feeds the and subscores. The DET tests it with dictation and a multi-turn interactive conversation, so you need to decode natural, connected speech and follow a dialogue’s meaning — not just catch isolated words.[1]
Listen & Type (dictation)
In you hear a spoken sentence and type exactly what you heard. You may replay the audio up to three times total. Scoring checks the exact words plus their spelling, capitalization, and punctuation — so an accurate transcription, not a paraphrase, is required.[1]
The best method is to type what you hear on the first listen, then replay to check the small words and word endings. Missing a word is penalized more than mistyping one, so write something for every word rather than leaving a gap.[4]
Interactive Listening
simulates a multi-turn conversation with a character to achieve a goal — for example, following up with a professor. In the Listen and Respond turns you read the situation, pick the best opening line, then choose the best reply at each turn. Each clip plays once, so listen closely and track who the speakers are and how they relate.[1]
Summarize the Conversation
After the dialogue, asks you to write a short paragraph summary of what the speakers discussed and decided. A good summary captures both speakers’ key points and the outcome in your own words — not a personal story and not a copy of one line. Lead with the facts (who, what, the decision) and use the full time.[4]
Core Listening Skills
The hardest part of listening is — in natural English, sounds link and reduce so words run together (“want to” → “wanna”). Train your ear to segment that stream: listen for the stressed (emphasized) words first because they carry the meaning, then fill in the unstressed words, and use replays to catch numbers, dates, and word endings.
Checkpoint · Listening
Question 1 of 8
On the Duolingo English Test, how many total times may a test taker listen to the audio in a Listen and Type item before submitting the transcription?
Speaking
Speaking feeds the and subscores. The DET tests it from images, written and spoken prompts, a live AI conversation, and an extended sample — graded by AI on , , vocabulary, grammar, and relevance.[3]
Speak About the Photo
In you get about 20 seconds to plan, then describe an image aloud for 30–90 seconds. Start with the main subject and action, then add visible details to keep speaking and show more language — describing only what is actually there. Use the present continuous (“A woman is choppingvegetables”), and never name something that isn’t in the picture — accuracy is part of the score.[4]
Read Then Speak
gives you a written prompt and asks you to speak about it for 30–90 seconds after a short planning window. Understand the prompt fully, answer all parts of it, speak for at least 30 seconds with varied vocabulary and sentence structure, and come to a natural conclusion.[4]
Interactive Speaking & the Speaking Sample
(added in 2025) is an AI-simulated conversation of 6–8 question-and-answer turns, about 35 seconds each, with no prep time — follow-up questions are chosen in real time based on what you say. Respond conversationally and immediately; it is graded on fluency, grammar, pronunciation, vocabulary, coherence, and task completion.[6]
The is a longer (1–3 minute) open response, recorded as videoand sent to institutions for direct review. Don’t watch the timer — keep talking, stay on topic, organize your answer, and conclude naturally; remember a real person may watch it.[1]
| Task | Stimulus | Length |
|---|---|---|
| Speak About the Photo | An image | 30–90 sec (after ~20 sec to plan) |
| Read Then Speak | A written prompt | 30–90 sec (after a short plan) |
| Interactive Speaking | A live AI conversation | 2 topics, 6–8 turns, ~35 sec each |
| Speaking Sample (sent to schools) | An open prompt | 1–3 min, video |
Pronunciation & Fluency
— speaking smoothly at a natural pace without frequent long pauses — and — clear, accurate sounds, stress, and intonation — are scored directly. Build them by speaking in connected sentences, using transition words to link ideas, and practicing aloud so common phrases come automatically. A few small errors said fluently beat a halting, error-free fragment.
Checkpoint · Speaking
Question 1 of 8
On the 2026 Duolingo English Test, which set lists only current Speaking section tasks?
How to Use This Study Guide
Work through all four skills. After each module, check it off in the contents to raise your exam-readiness score, then drill the same content in our free practice questions and flashcards — active recall and timed practice are what turn knowledge into a higher score.
- 1
Step 1
Learn how the test is built and scored — the adaptive engine, the 10–160 scale, and the four subscores — so you know which skill to target.
- 2
Step 2
Find your weakest skill (use a practice test). Because each skill feeds two subscores, raising your lowest one moves your overall score fastest.
- 3
Step 3
Master the task-specific techniques: the c-test approach, verbatim dictation, accurate photo descriptions, and answering every part of a speaking prompt.
- 4
Step 4
Build the underlying English skills — vocabulary breadth, high-frequency grammar, decoding connected speech, and speaking fluently for the full time.
- 5
Step 5
Take full timed practice and rehearse the open responses (Writing & Speaking samples) aloud, then aim to clear your target school's required score with margin.
- Target your weakest skill. Each of the four skills counts toward two subscores, so fixing your lowest lifts two at once.
- Practice the open responses out loud and in writing. The Writing and Speaking samples are sent to schools — rehearse organizing a clear answer in the time limit.
- Make the c-test and dictation automatic. They reward fast, accurate reading and listening — exactly what spaced flashcard practice builds.
- Don’t try to memorize the test. It’s adaptive and drawn from a huge pool — build real skill instead.
- Then prove it. When a skill feels easy, confirm it with our practice questions and flashcards.
Common questions DET candidates search and need answered — each given briefly and backed by an official source (Duolingo’s test-format and scoring pages or the Council of Europe’s CEFR). Tap any card to test yourself.
Duolingo English Test Concept Questions
Duolingo English Test Glossary
Key DET terms in one place. Hover any dotted term throughout the guide for its definition; the full list is below.
- DET
- The Duolingo English Test — a computer-adaptive, online, at-home English proficiency test used for university admissions, scored 10–160.
- computer-adaptive
- A test whose item difficulty changes based on your answers — a correct answer makes the next item harder, a wrong one easier — so it pinpoints your level in fewer questions.
- adaptive test
- The ~45-minute graded section of the DET that produces your 10–160 score by mixing question types whose difficulty adapts to your performance.
- CEFR
- The Common European Framework of Reference — a six-level scale (A1, A2, B1, B2, C1, C2) used to describe language ability; the DET score aligns to it.
- subscore
- One of the four skill scores (Literacy, Comprehension, Conversation, Production) reported alongside your overall DET score, each on the 10–160 scale.
- Literacy
- The DET subscore for written language — the average of your Reading and Writing ability.
- Comprehension
- The DET subscore for understanding language — the average of your Reading and Listening ability.
- Conversation
- The DET subscore for spoken interaction — the average of your Listening and Speaking ability.
- Production
- The DET subscore for producing language at length — the average of your Writing and Speaking ability.
- c-test
- The Read and Complete task — a passage in which the second half of many words is deleted; you type the missing letters using spelling and context.
- Read and Complete
- The DET c-test reading task: restore deleted word-endings in a short passage using context and spelling.
- Read and Select
- A vocabulary task showing a list of letter strings; you choose only the real English words, ignoring invented pseudowords.
- pseudoword
- An invented letter string that looks like a plausible English word (e.g. “plonish”) used in Read and Select to test genuine vocabulary knowledge.
- Fill in the Blanks
- A task showing a sentence with one unfinished word; you type the missing letters to complete it using context.
- Listen and Type
- The dictation task — type the spoken sentence exactly, including spelling, capitalization, and punctuation; audio is replayable up to three times.
- dictation
- Writing down spoken language word for word; on the DET this is the Listen and Type task.
- Write About the Photo
- A writing task: type at least one complete sentence describing a displayed image, in about one minute.
- Speak About the Photo
- A speaking task: after ~20 seconds to plan, describe a displayed image aloud for 30–90 seconds.
- Interactive Reading
- A multi-part reading block built on one passage: Complete the Sentences, Complete the Passage, Highlight the Answer, Identify the Idea, and Title the Passage.
- Interactive Listening
- A multi-turn simulated conversation in which you choose responses (Listen and Respond) and then write a summary (Summarize the Conversation).
- Interactive Writing
- A two-step writing task: write about a topic for 5 minutes, then write a follow-up response for 3 minutes based on a generated prompt.
- Interactive Speaking
- A newer (2025) speaking task — a 6–8 turn AI-simulated conversation with 35 seconds per response and no prep time.
- Summarize the Conversation
- The step after Interactive Listening: write a paragraph summarizing what the speakers discussed and decided.
- Read, Then Speak
- A speaking task: read a written prompt, then speak about it for 30–90 seconds after a short planning window.
- Writing Sample
- An extended (3–5 minute) writing response on an open prompt, sent to institutions for direct review rather than counted in the score.
- Speaking Sample
- An extended (1–3 minute) spoken response, recorded as video and sent to institutions for direct review rather than counted in the score.
- proctoring
- Remote test supervision; the DET is reviewed by human proctors aided by AI checking dozens of behaviors to certify the result.
- certified result
- A DET result Duolingo has reviewed and validated; only certified results can be sent to institutions.
- main idea
- The single most important point a passage makes — what the whole text is about, as opposed to a supporting detail.
- context clue
- A hint in surrounding text (a definition, synonym, example, or contrast) that reveals the meaning of an unfamiliar word.
- topic sentence
- The sentence stating a paragraph's main point, usually first, with the rest of the paragraph supporting it.
- transition word
- A connector (however, therefore, also, finally) that shows how ideas relate and makes writing and speech flow.
- subject-verb agreement
- The rule that a verb must match its subject in number — singular subject, singular verb; plural subject, plural verb.
- fluency
- The ability to speak smoothly and continuously at a natural pace without frequent long pauses — one of the dimensions DET speaking is graded on.
- connected speech
- Natural spoken English in which sounds link and reduce so words run together (e.g. “want to” → “wanna”), making listening harder.
- pronunciation
- How clearly and accurately you produce English sounds, stress, and intonation — a graded dimension of DET speaking.
- Item Response Theory
- The statistical model behind adaptive scoring that estimates ability from the difficulty of items you answer correctly.
Duolingo English Test Study Guide FAQ
The Duolingo English Test takes about one hour: roughly 5 minutes of onboarding, a ~45-minute adaptive graded section, and ~10 minutes for the Writing and Speaking samples. Because it is computer-adaptive, there is no fixed number of questions — the test ends when the scoring engine is confident in your level, and every test is different.
The DET reports an overall score from 10 to 160 in 5-point increments. The overall score is the average of four individual skill scores (Reading, Writing, Listening, Speaking), and the test also reports four integrated subscores — Literacy (reading + writing), Comprehension (reading + listening), Conversation (listening + speaking), and Production (writing + speaking).
There is no universal pass mark — each institution sets its own minimum. As a guide, a score of 100–125 maps roughly to CEFR B2 and meets many program requirements, while 130+ maps to C1 and suits selective programs. Always check your target school's exact required overall score (and any subscore minimums) before testing.
Besides the overall score, the DET reports four subscores, each blending two skills: Literacy (reading + writing), Comprehension (reading + listening), Conversation (listening + speaking), and Production (writing + speaking). Each of the four skills counts toward two subscores, so balanced ability across reading, writing, listening, and speaking lifts the most subscores.
The adaptive section mixes Read and Select, Fill in the Blanks, Read and Complete (the c-test), Listen and Type (dictation), Write and Speak About the Photo, Read Then Speak, Interactive Reading, Interactive Listening, Interactive Writing, and Interactive Speaking. Two extended samples — a Writing Sample and a Speaking Sample — are sent to institutions for review. (Read Aloud and Listen, Then Speak were retired in 2025.)
Yes — you take the DET online from a quiet, private, well-lit room on the Duolingo desktop app, with a working camera and microphone. It is remotely proctored: human proctors aided by AI review each session for more than 75 behaviors before certifying your result, which is typically released in about 48 hours.
You may purchase up to three tests in any 30-day period, and you can retake a certified result anytime by buying another test. Certified scores are valid for two years. The test fee is about $70 USD (a dated anchor — verify the current price on the Duolingo site, as pricing changes).
Read and Complete is a c-test: you see a short passage where the second half of about every other word has been deleted. You type the missing letters to restore each word, using spelling and the meaning of the surrounding sentence. The first sentence is usually shown complete to set the context.
Work through all four skill modules — Reading, Writing, Listening, and Speaking — learning each task type and its strategy. Because every skill counts toward two subscores, give the most time to your weakest skill. After each module, drill the same content in our free DET practice questions and flashcards.
Yes — the full guide, the glossary, the concept questions, the practice questions, and the flashcards are 100% free with no account required.
References
- 1.Duolingo, Inc.. “Duolingo English Test — Official Guide for Test Takers (Test Format & Question Types).” englishtest.duolingo.com. ↑
- 2.Duolingo, Inc.. “Understanding Your Duolingo English Test Scores & Subscores.” englishtest.duolingo.com. ↑
- 3.Duolingo, Inc.. “How Is the Duolingo English Test Scored?.” blog.englishtest.duolingo.com. ↑
- 4.Duolingo, Inc.. “Preparing for the Duolingo English Test — Question Types & Tips.” englishtest.duolingo.com. ↑
- 5.Council of Europe. “Common European Framework of Reference for Languages (CEFR) — Global Scale & Level Descriptions.” Council of Europe. ↑
- 6.Duolingo, Inc.. “Interactive Speaking on the Duolingo English Test.” blog.englishtest.duolingo.com. ↑
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