Voiced & Voiceless Pairs (p/b, t/d, k/g, f/v, s/z)

Intermediate · Consonant Sounds

Many English consonants come in pairs that are made in exactly the same place, with the same tongue and lips — the only difference is whether your vocal cords buzz. /p/ and /b/, /t/ and /d/, /k/ and /g/, /f/ and /v/, /s/ and /z/ are all such pairs.

This matters at the ends of words especially: "back/bag", "cap/cab", "rice/rise". Softening or dropping the final consonant, or using the wrong voicing, can change the word.

The pairs (voiceless → voiced)

p→b · t→d · k→g · f→v · s→z · ch→j. Same mouth position; only the throat "buzz" differs.

Rules & examples

1. Voiceless sounds (p, t, k, f, s) have no throat buzz.

   At the start of a word, p/t/k also get a small puff of air.

   • pen, ten, cat, fan, sun
2. Voiced sounds (b, d, g, v, z) buzz the vocal cords.

   Hand on throat: you feel vibration.

   • big, day, go, van, zoo
3. Pronounce final consonants clearly — do not drop them.

   The final sound often carries the meaning.

   • bag (not "ba")
   • cab, dog, five, buzz

Minimal pairs

• back / bag — final /k/ vs /g/
• cap / cab — final /p/ vs /b/
• rice / rise — final /s/ vs /z/
• bat / bad — final /t/ vs /d/
• leaf / leave — final /f/ vs /v/

Tips to remember

• A voiced final consonant makes the vowel before it a little LONGER: the "a" in "bag" is longer than in "back".
• Give p, t, k at the start of a word a small puff of air (aspiration): "pin, tin, kin".

Common mistakes

• ✗ Dropping final consonants: "I like my do(g)." → ✓ Pronounce the final sound clearly: "dog". — The final consonant often carries the meaning and voicing distinction.