Know It Just by Touching Your Throat: Understand Voiced and Voiceless B/P, D/T, F/V, S/Z, and K/G Once and for All
Have you ever noticed that bat and pat sound almost the same? Or that fan and van are easily confused? Don't worry, it's not your ears' fault. These consonants are actually "twins," with almost identical mouth shapes. Today, we'll teach you a simple trick of touching your throat to easily distinguish five pairs of consonants once and for all. Even the word-ending pronunciations you used to find difficult will become natural.
Voiced vs. Voiceless: What's the Difference, Really?
Many English consonants appear in "pairs." For each pair, the mouth shape and tongue position are exactly the same. The only difference is one thing: whether the vocal cords vibrate when pronouncing them.
- Voiced consonants (voiced): The vocal cords vibrate, such as b, d, v, z, g.
- Voiceless consonants (voiceless): The vocal cords do not vibrate; only airflow passes through, such as p, t, f, s, k.
Let's take the easiest example to understand: the z at the beginning of zoo and the s at the beginning of Sue. Your tongue, teeth, and lip positions are exactly the same, but z makes your throat buzz with vibration, while s is completely quiet and silent. That is the only difference.
Two Quick Tests You Can Do Anywhere
Test 1: Touch Your Throat
Place your fingers gently on the center of your throat (near your Adam's apple), then slowly make a prolonged sound.
- When pronouncing voiced consonants like z, v, b, you will feel a clear vibration—a tingling, buzzing sensation.
- When pronouncing voiceless consonants like s, f, p, your throat is completely quiet, with no vibration.
Tip: Try alternating between "zzzzz..." and "ssssss..." continuously. The vibration will switch "on, off, on, off," making the transition very clear.
Test 2: Put a Tissue in Front of Your Mouth
Tear off a small piece of tissue, or simply place your open palm in front of your mouth, and then make the sound.
- When pronouncing voiceless p, t, k (at the beginning of a word), you "aspirate"—a puff of air blows out, and the tissue will be blown.
- When pronouncing voiced b, d, g, the airflow is weaker, and the tissue barely moves.
Using both tests together: touch your throat to determine "vibration" and place a tissue to determine "aspiration." You can verify from both angles, which is incredibly useful.
Five Pairs with Minimal Pairs
Each pair below includes a "minimal pair," which means the two words differ by only that one consonant, while everything else is the same. Alternating between them when practicing is the best way to hear the difference.
B / P (bilabial / lips)
- I have a baseball bat.
- Please pat the dog gently.
Minimal pair: bat / pat.
D / T (tongue against the upper gum ridge)
- A dime is ten cents.
- What time is it now?
Minimal pair: dime / time.
F / V (upper teeth on lower lip)
- Turn on the fan, it's hot.
- He drives a white van.
Minimal pair: fan / van.
S / Z (tongue close to the upper gum ridge)
- I take the bus to school.
- I heard a bee buzz.
Minimal pair: sip / zip.
K / G (back of tongue against the soft palate)
- She wore a warm coat.
- Look at that little goat.
Minimal pair: coat / goat.
Two Places You’re Already Using This
Once you learn voiced and voiceless sounds, you will suddenly understand two of English's "hidden rules."
Word endings -s / -es are often actually pronounced as /z/
Many people think that plural and third-person -s are always pronounced as /s/, but it actually depends on the preceding sound. If the preceding sound is voiced, -s follows suit and becomes the voiced /z/.
- dogs is pronounced /dɒɡz/ (g is voiced).
- goes is pronounced /ɡəʊz/ (vowels are voiced).
- cats is pronounced /kæts/ (the preceding t is voiceless).
No need to memorize rules. Just speak smoothly when pronouncing, and your tongue will naturally make the right choice—this is the wisdom of the body.
Past tense -ed is also split into /d/ and /t/
By the same logic, -ed is pronounced as /d/ after a voiced sound, and as /t/ after a voiceless sound.
- The -ed in played is pronounced /d/ (play ends in a voiced sound).
- The -ed in walked is pronounced /t/ (the k at the end of walk is voiceless).
We'll stop here for now. Knowing that "voiced vs. voiceless is the deciding factor" is enough for now; you'll get more and more familiar with it as you encounter it in the future.
The Most Common Habit of Taiwanese Learners
In Mandarin, consonants are usually not placed at the end of a syllable, so when pronouncing English, it is very easy to devoice or simply drop the voiced consonants at the end of words. Common examples include:
- Pronouncing bag as back, where the g is devoiced into a k.
- The ending of is secretly becomes /s/, missing that vibration.
- The /z/ at the end of has and his also often becomes too light.
Tip for checking: When you reach the end of a word, intentionally let your throat "buzz just a bit more." For example, I have a bag ✓, I have a back ✗. Just keeping the vibration at the end of the word will instantly make your English sound much more authentic. Take your time, touch your throat a few more times, and muscle memory will help you remember.
How to Practice on Loopy
It is hard to really "hear" the difference between vibration and aspiration just by reading text. This is when your ears and mouth need to work together.
On Loopy, you can tap the pronunciation of any word in the dictionary to repeatedly listen to minimal pairs like bat and pat, or fan and van, comparing the subtle differences time and again. The graded courses place these words in real sentences and listening contexts. Coupled with the shadowing feature, you speak along and the system compares your voice, letting you feel exactly whether the ending is vibrating or if the p/t/k is aspirated. Combined with the spaced repetition review, you will encounter them just when you are about to forget them, helping good pronunciation habits grow on you bit by bit.
Want to know if your ears can tell the difference between bat and pat, or fan and van? Try a 20-question minimal pair listening challenge. With different speakers for each question, you'll immediately see your most easily confused weak sounds upon completion, so you can target them in your next practice session.