ScoreFluentIf you've been grinding PTE Speaking for weeks and your Pronunciation score still won't break 70, the problem is probably not your effort. It's a single sound. The voiceless dental fricative — written /θ/ in the IPA, spelled "th" in words like think, throne, method, truth — is the one phoneme that almost nobody who learned English as a second language gets right by default.
And in the way PTE scoring works, getting one phoneme consistently wrong drags down your overall Pronunciation band more than five smaller errors combined. Let me show you why.
The acoustic reason it costs so much
Azure Pronunciation Assessment (the engine PTE uses) scores each phoneme on a 0–100 confidence scale, then aggregates. If your /θ/ is consistently substituted for /t/ (the South Asian pattern) or /s/ (the French / German / Spanish pattern), every word containing "th" loses you points. In a typical Read Aloud passage, you'll hit "th" 4–6 times.
That alone caps your Pronunciation accuracy at around 70. Not because the engine is harsh — because the engine is correct. You really did say tink instead of think.
The cruelty of phoneme scoring: one wrong sound, repeated, scores worse than five different wrong sounds spread out.
The 60-second diagnostic
Record yourself reading this sentence out loud. Don't try to slow down or fix anything yet — just read it the way you normally would:
"I think the truth about thirty-three thousand thieves is something worth thinking through."
Now play it back. You're listening for one thing: does the "th" make the same shape your tongue makes when you say "tea" or "see"? If yes, you have the substitution. Welcome to the club — you'll move out of it in three short sessions.
How ScoreFluent flags this automatically.
If you take that same sentence as a Read Aloud attempt in the app, our scoring breakdown shows each "th" word individually, marks the phoneme that triggered the deduction, and offers a 5-minute clinic on /θ/ vs /t/ minimal pairs.
The fix · three short sessions
The reason /θ/ feels foreign isn't your accent — it's that most languages don't have an interdental fricative at all. Your tongue genuinely doesn't know where to go. The goal of practice is to give it that new place.
Session 1 · The tongue position (5 minutes)
Don't try words yet. Sit in front of a mirror and do this:
- Stick the tip of your tongue out so it touches the bottom of your top teeth. Visible, just barely.
- Now exhale gently. You should hear a soft hissing sound that's not /s/ — it's airier, flatter.
- That's
/θ/. Do it 20 times in a row, looking in the mirror. Stop when your tongue can find that position without thinking.
Most people get this in under five minutes. The hard part isn't the mechanic. The hard part is doing it while also speaking.
Session 2 · Minimal pair drills (10 minutes)
A minimal pair is two words that differ by one sound. The classic /θ/ drills:
- think vs tink · thank vs tank · three vs tree
- thin vs sin · thick vs sick · thigh vs sigh
- mouth vs mouse · fourth vs force · truth vs truce
Record yourself saying each pair five times. Listen back. If you can hear the difference between the two words in the recording, you're 80% done. If you can't, you're substituting — back to Session 1 for two more minutes, then try again.
Session 3 · Real-context drilling (15 minutes)
This is where most people quit too early. You can ace minimal pairs in isolation and still fall back into /t/ the moment you're reading a real PTE Read Aloud passage. Why? Because your brain stops monitoring once it has more important things to think about (intonation, pace, content).
The fix: take three real Read Aloud passages with at least four "th" words each, and read them aloud at full PTE pace (no slowing down). Score yourself: count the "th" words, then count the ones you got right. Aim for 100%. When you hit 100% on three passages in a row, the habit is rewired.
Why this works faster than "general pronunciation practice."
Targeting one phoneme means your brain isn't deciding what to fix — it's just executing. Generic "speak slowly and clearly" advice spreads attention across 44 phonemes. This spreads it across one. That's how three short sessions can move a PTE Pronunciation score by 8–12 points.
What if you have both /θ/ and /ð/?
The voiceless /θ/ we've been working on is the "th" in think, three, thanks. The voiced version, /ð/, is the "th" in this, them, weather, brother. Tongue position is identical — the difference is that your vocal cords vibrate for /ð/.
Good news: if you can do /θ/, /ð/ takes about thirty seconds. Put your hand on your throat, say "thanks," then say "this." You should feel the vibration kick in on "this" but not on "thanks." If both feel the same, you're devoicing /ð/ — common, fixable, and the engine forgives it more than the /t/ or /s/ substitution.
Three sessions, not three weeks
The hardest thing about pronunciation work is convincing yourself that something you've said wrong for ten years can change in three short sessions. It can. Phoneme habits are motor habits, not personality traits. The tongue position drill is the same kind of skill as learning to whistle: confusing at first, suddenly automatic.
If you want to try the targeted clinic for /θ/ with instant scoring, ScoreFluent is opening early access this September. The /θ/ clinic is one of the first six we built, because it's the change that moves PTE Pronunciation scores faster than anything else.
The summary.
One sound, three sessions: position the tongue (5 min), drill minimal pairs (10 min), drill in real passages (15 min). Expect Pronunciation to move 8–12 points within a week of practice — assuming this is your weakest phoneme. It usually is.
— Rishul