Listen closely to a native speaker say todo, lobo or agua and you will notice something that textbooks often skip: the second consonant is not a real d, b or g at all. It is softer, almost a glide. This process, called spirantisation, is one of the clearest markers of a natural Spanish accent, and it is easy to learn once you know the rule.
What happens
Spanish /b d g/ each have two pronunciations. As full stops they sound roughly as in English. As approximants, the articulators come close together but never close, so air keeps flowing:
| Phoneme | Stop | Approximant | Example of the soft sound |
|---|---|---|---|
| /b/ (spelled b or v) | [b] | [β̞], lips almost touching | , , |
| /d/ | [d̪] | [ð̞], tongue tip near the teeth | , , |
| /g/ | [g] | [ɣ̞], back of tongue near the soft palate | , , |
The IPA symbols with the small lowering mark (◌̞) mean "more open than a fricative". Many books write them simply as [β ð ɣ].
The rule
The stop version is used in only a few positions. Everywhere else, the soft version is the default.
- After a pause (at the start of what you say): , ,
- After m or n: , , , ,
- For d only, after l: ,
Everywhere else, including between vowels, after r, s and other consonants, and across word boundaries, you use the soft sound: , , , , .
Word boundaries do not matter. The rule applies to the whole phrase. Vaca alone begins with [b], but in la vaca the v is between two vowels, so it becomes [β]. Dedo is [ˈde.ðo]: a hard d at the start and a soft one in the middle.
How to make each sound
Soft b [β]
Start to say b, but stop your lips just before they touch, leaving a tiny gap. Keep your voice on. The result is between an English b and v, but with no teeth involved. English speakers often use an English v here, which sounds wrong: Spanish never puts the teeth on the lip for this sound.
Soft d [ð]
This is the easiest for English speakers, because it resembles the th of this and other. Make it lighter: the tongue tip only grazes the edge of the upper teeth. Say as [ˈna.ða], not "nadda". The American flap, as in ladder, is a common mistake here, because to Spanish ears it sounds like an r: todo with a flap sounds like toro.
Soft g [ɣ]
Say g but do not let the back of your tongue fully touch the roof of your mouth. You should hear a soft, voiced friction, like a gentle gargle without the rasp. In and it can be very weak indeed.
B and V are the same sound
This surprises English speakers, but it is completely consistent. Spanish b and v are one phoneme with two spellings. and (roof rack) sound identical; so do and . Both letters follow the rule above: [b] after a pause or nasal, [β] elsewhere. has [b], because it follows n, and has [β].
The labiodental English v, with teeth on lip, is not used in standard Spanish, although a few speakers use it in careful speech under the influence of spelling.
Common mistakes
- Hard d between vowels. "Todo" with an English d sounds heavily foreign. Make it soft.
- Flapped d. An American flap in todo is heard as r: toro. Keep the tongue at the teeth, not the ridge.
- English v. Using the teeth for v in vino or nuevo. Use the lips only.
- Soft sound after n. Softening in mundo or ambos is wrong; after a nasal the stop is required.
Phrases in this drill:
- Todo el mundo lo sabe.
- La vaca bebe agua del lago.
- Mi amigo tiene un gato gordo.
- ¿Dónde está la bodega?
- Nadie dijo nada de la boda.
Hard or soft?
Choose an answer to see the explanation.
1. In un vaso, the v is pronounced...
- [b], a full stop
- [β], soft
- [v], teeth on lip
Answer: [b], a full stop. It follows n, so it is a stop.
2. In la boda, how are b and d pronounced?
- Both hard
- Both soft
- Hard b, soft d
Answer: Both soft. Both are between vowels (la‿boda), so both soften: [la.ˈβo.ða].
3. In el dedo, the first d is...
- [d], a stop, because it follows l
- [ð], soft
- silent
Answer: [d], a stop, because it follows l. /d/ stays a stop after l, so el dedo is [el.ˈde.ðo]: a hard d and then a soft one.
4. Do tuvo (he had) and tubo (tube) sound different?
- Yes, v uses the teeth
- No, they are identical
- Only in Spain
Answer: No, they are identical. Spanish b and v are the same phoneme; both words are [ˈtu.βo].
Frequently asked questions
Are Spanish b and v pronounced differently?
No. In all standard varieties of Spanish they are the same sound. Both are [b] after a pause or m/n, and both are soft [β] elsewhere. The difference is purely in spelling, which is why native speakers ask "¿con b o con v?" when spelling a word.
Is the soft d in Spanish the same as English th?
It is similar to the voiced th in this, but weaker. The tongue tip barely touches the edge of the upper teeth and there is little friction. A full English th sounds too strong.
Do Spanish speakers drop the d in -ado?
In casual speech, many speakers from Spain and parts of Latin America weaken the d in -ado until it almost disappears, so cansado sounds like "cansao". In careful speech the soft [ð] is kept. Learners should use the soft d.
Sources and further reading
- Hualde, J. I. (2005). The Sounds of Spanish, chapter 8: Voiced obstruents. Cambridge University Press.
- Martínez-Celdrán, E. (2004). Problems in the classification of approximants. Journal of the International Phonetic Association, 34(2), 201–210.
- Zampini, M. L. (1994). The role of native language transfer and task formality in the acquisition of Spanish spirantization. Hispania, 77(3), 470–481.
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