Most learners practise the sounds they already know are hard. That is the wrong list. The sounds that cost you the most are usually the ones you cannot hear yourself making, which is why a word list will never find them. Reading a connected passage will, because it forces every feature of English pronunciation to appear at once: vowels, clusters, stress, rhythm, linking, and the endings you drop when you stop thinking about them.
This is a ten-sentence diagnostic you can run in about six minutes. Each sentence is loaded with one high-value feature. You read it once, score it against the rubric, and you come out with a ranked list of what to practise instead of a vague feeling that your pronunciation 'needs work'.
How to Run the Test
The value of a diagnostic depends entirely on not cheating. Four rules:
- Record before you rehearse. Open the voice recorder on your phone and read the passage cold, once. If you practise the sentences first you will test your memory, not your pronunciation.
- Read at your normal speaking speed. Careful, slow reading hides exactly the errors you make in real conversation. If anything, read slightly faster than feels comfortable.
- Hold the phone at arm's length in a quiet room, and speak as if you are talking to a person, not dictating.
- Listen the next day, not immediately. Your brain repairs your own speech for several minutes after you produce it. A day later you hear what a stranger hears.
Listen through speakers rather than earbuds if you can. Earbuds flatter the sound and make final consonants seem clearer than they are.
The 10-Sentence Diagnostic Passage
Read the ten sentences in order, without stopping between them. Then come back and score each one using the notes below it.
1. Probe: /iː/ vs /ɪ/
"He didn't feel the ship leave the beach, and it still seems a bit strange."
- What it tests: The tense and lax vowel pair that carries more real word contrasts than any other in English: feel/fill, ship/sheep, leave/live, beach/bitch, seems/simms. The two vowels differ in tongue position, not just length.
- What a slip sounds like: If a listener could not tell 'ship' from 'sheep' out of context, mark it 0. If both were distinct but the difference was length only, mark it 1.
2. Probe: /æ/ vs /ɛ/
"Ten men at the back said the black cat sat on my hat."
- What it tests: The front vowel range that most languages compress into one sound. 'Ten' and 'men' need /ɛ/; 'back', 'black', 'cat', 'sat' and 'hat' need the lower, longer /æ/.
- What a slip sounds like: 'Ten' and 'sat' sounding like the same vowel, or 'hat' sounding like 'het'. Spanish, Portuguese, French and German speakers all tend to land in the middle.
3. Probe: /b d ɡ/ vs /p t k/
"His bag was in the back of the cab, and the bad news had already spread."
- What it tests: Final voiced consonants, and the vowel length that actually signals them. In American English the vowel in 'bag' is clearly longer than in 'back'; that length is the main cue, not the consonant itself.
- What a slip sounds like: 'Bag' arriving as 'back', 'had' as 'hat', 'his' as 'hiss'. Listen for a short vowel plus a hard, whispered final consonant.
4. Probe: /skt/, /ksts/, /st m/
"She asked for three scripts, but the texts she sent last month were strange."
- What it tests: Consonant clusters at both ends of the word. 'Asked' is /æskt/, 'texts' is /tɛksts/, and 'sent last month' stacks three clusters in a row with no vowels to rest on.
- What a slip sounds like: 'Asked' becoming 'ask' or 'as-ked', 'texts' becoming 'tex', and an extra vowel appearing before 's' clusters ('e-scripts').
5. Probe: /θ/ vs /ð/
"Both authors thought the other three theories were worth something."
- What it tests: The voiceless /θ/ in 'both', 'thought', 'three' and 'worth' against the voiced /ð/ in 'the' and 'other'. Same tongue position, different voicing.
- What a slip sounds like: 'Thought' as 'tought' or 'sought'. Mark 1 rather than 0 if the word was still unambiguous, which it usually is.
6. Probe: PHO·to·graph vs pho·TO·graph·er
"The photographer said her photograph of the desert was a remarkable photographic record."
- What it tests: Stress that moves when a suffix is added: PHO-to-graph, pho-TOG-ra-pher, pho-to-GRAPH-ic. 'Desert' also tests the noun stress on the first syllable.
- What a slip sounds like: Every form stressed on the same syllable, or 'photographer' pronounced with four equal beats. Also listen for 'record' stressed like the verb.
7. Probe: was, to, a, of, and, some, are
"I was going to tell you that a cup of tea and some bread are all I need."
- What it tests: Weak forms. Seven function words here should be reduced almost to nothing: 'was' becomes /wəz/, 'to' becomes /tə/, 'of' becomes /əv/, 'and' becomes /ən/, 'are' becomes /ər/.
- What a slip sounds like: Every word getting equal weight, which makes the sentence sound like a list. This is the single most common cause of 'you sound robotic' feedback.
8. Probe: flap /ɾ/ and /nt/
"Twenty little water bottles sat in the center of the counter."
- What it tests: The American flap: the /t/ in 'little', 'water', 'bottles' and 'counter' becomes a fast /ɾ/, and 'twenty' and 'center' usually lose the /t/ altogether.
- What a slip sounds like: A full, aspirated /t/ in 'water' and 'bottles'. Perfectly clear, but it marks the accent instantly, so mark 1, not 0.
9. Probe: dark /l/ and /ɝr/
"The girl felt the whole world was full of terrible little problems."
- What it tests: Dark /l/ at the end of 'felt', 'whole', 'full' and 'terrible', plus the r-coloured vowels in 'girl' and 'world'. Also checks /ʊ/ in 'full' against /oʊ/ in 'whole'.
- What a slip sounds like: 'Felt' with a Spanish or French /l/, 'world' collapsing into 'word' or 'wold', 'full' merging with 'fool'.
10. Probe: linking and elision
"Not at all. I'll pick it up in an hour and a half, if that's all right with you."
- What it tests: Everything running together. 'Not at all' links into three beats with a flap, 'pick it up' does the same, 'in an hour' has no audible h, and 'and a half' reduces to /ənə/.
- What a slip sounds like: Reading it as ten separate words with tiny pauses. If it sounded like a list rather than a phrase, that is a 0 even if every sound was correct.
Drill the Six Hardest Words First
These six words from the passage account for most of the lost points. Tap each one to hear it, then say it back three times before you re-read the sentence it came from.
The Scoring Rubric
Score each sentence out of 2, for a total out of 20. Judge clarity, not accent:
- 2 points: a stranger would understand every word on the first pass, and the target feature was correct.
- 1 point: understandable, but the target feature slipped. Your accent is audible; the message still arrives.
- 0 points: a listener could have heard a different word, or had to reconstruct the sentence from context.
Add up your twenty points and read the band:
| Score | What it means | What to do next |
|---|---|---|
| 18 to 20 | Intelligibility is solid. Remaining issues are accent features, not clarity problems. | Move to rhythm and expressiveness: sentence practice and reading a full story out loud. |
| 13 to 17 | Two or three systematic features are costing you words. | Take the lowest-scoring sentence and drill only its feature for two weeks. |
| 8 to 12 | Several high-value features are unstable at the same time. | Work in the order of the table below, one feature at a time, ten minutes a day. |
| Below 8 | The vowel inventory and syllable structure need rebuilding before anything else. | Start with vowel practice, then minimal pairs. |
What Each Error Actually Means
Symptoms are not the same as causes. This table maps what you hear on the recording to the underlying feature, and to the page where you can drill it.
| What you hear on the recording | The real cause | Where to drill it |
|---|---|---|
| 'Ship' and 'sheep' sound the same | Tense and lax vowels distinguished by length instead of tongue position | Minimal pairs |
| An extra vowel before 'sp', 'st', 'sc' ('e-scripts') | Your first language does not allow word-initial s-clusters | Consonant practice |
| Final consonants sound hard and short ('bag' to 'back') | Final devoicing plus a clipped vowel | Minimal pairs |
| Clusters simplified ('asked' to 'ask') | Cluster reduction, usually with the middle consonant deleted | Build a word |
| Every syllable the same length | Weak forms not reduced, so the rhythm is syllable-timed | Contractions practice |
| Stress on the wrong syllable | Words stored without their stress pattern | Phonetic transcription |
| Full /t/ in 'water', 'little', 'bottles' | No flapping, which is an accent feature rather than a clarity problem | Word practice |
| 'World' or 'girl' losing a sound | R-coloured vowel plus dark /l/ in the same syllable | Tongue twisters |
| You cannot hear your own errors at all | A perception gap: you are not yet hearing the contrast | Type what you hear |
Five Ways People Ruin Their Own Diagnostic
The test is only as honest as the conditions. Avoid these:
- Rehearsing the passage. Read it cold, once. Rehearsed speech is not the speech anyone hears from you.
- Reading slowly and carefully. Slow reading is a different motor task from talking. It hides cluster reduction and rhythm problems completely.
- Scoring accent instead of clarity. A noticeable accent with every word intelligible is a 2, not a 1. Do not punish yourself for sounding foreign.
- Scoring immediately after recording. For a few minutes after you speak, you hear what you intended, not what you produced.
- Fixing everything at once. A twenty-point diagnostic will surface five problems. Working on one until it holds up in spontaneous speech beats touching all five lightly.
Retest in Four Weeks
The passage is only half the tool. The other half is the comparison, so keep the file:
- Save the recording with the date in the filename, for example 'diagnostic-2026-07-29'.
- Pick one feature from your two lowest-scoring sentences and drill only that for four weeks.
- Record the same passage again, cold, at the same time of day, and score it before you listen to the first recording.
- Then play the two back to back. Improvement that you cannot hear in a comparison usually is not there yet, and improvement you can hear will motivate the next four weeks more than any score.
The Bottom Line
A passage tells you things a word list cannot, because English pronunciation lives in the joins between words. Read the ten sentences once, score them honestly out of 20, and take the two weakest to the practice room. When you want a second opinion, our accent quiz scores your ear rather than your mouth, and the two together give you a fairly complete picture. Then start drilling with pronunciation practice, using the sounds from your own recording instead of a generic list of hard sounds.