If your native language is Spanish, you have almost certainly encountered a frustrating phonetic hurdle when trying to pronounce plural words or third-person singular verbs ending in /sts/, such as tests, artists, or specialists.

In Spanish, consonant clusters at the end of words—especially three consecutive consonants like /s-t-s/—do not naturally exist. As a result, speakers frequently fall back on automatic habits to simplify the effort:

Dropping the final /s/ (saying test instead of tests).
Dropping the middle /t/ (saying tess instead of tests).
Inserting an initial /e/ before the word if it starts with an S (for example, saying e-specialists).

Overcoming this obstacle is not about innate talent; it is about building phonetic muscle memory. As an expert in pronunciation and British Received Pronunciation coaching in Madrid and online, I can show you how to master this technical challenge.

The Golden Rule for Mastering the /sts/ Sound

To pronounce /sts/ cleanly and naturally without your tongue tripping up, break it down into three precise physical movements:

Produce a clear, sustained /s/ sound (hissing like a snake).
Quickly stop the airflow with a sharp, light /t/ sound.
Immediately release the air back into a final /s/ sound.

Practice the process slowly in three distinct steps: S + T + S (for example: tes – t – s). Once your mouth muscles adapt, muscle memory takes over so you no longer have to think about it while speaking. This allows you to focus entirely on your global message and your audience.

Guided Practice: Professional Vocabulary Exercises

Work through these pairs and lists designed specifically for international professionals aiming for absolute precision:

1. Professions and Occupations Ending in -ISTS

Spanish speakers often reduce these key terms down to -is or -ist. Make sure to voice the complete plural ending:

Data scientists – /ˈdeɪtə ˈsaɪəntɪsts/
Specialists – /ˈspeʃəlɪsts/
Analysts – /ˈænəlɪsts/
Economists – /ɪˈkɒnəmɪsts/
Psychologists – /saɪˈkɒlədʒɪsts/

2. Minimal Pair Alternations (Singular vs. Plural / 3rd Person)

Train your mouth by alternating directly between the singular (-ST) and the plural or third-person form (-STS):

List /lɪst/ ➔ Lists /lɪsts/
Guest /ɡest/ ➔ Guests /ɡests/
Test /test/ ➔ Tests /tests/
Artist /ˈɑːrtɪst/ ➔ Artists /ˈɑːrtɪsts/
Specialist /ˈspeʃəlɪst/ ➔ Specialists /ˈspeʃəlɪsts/

Eliminate Phonetic Barriers with Edward Olive

Understanding the theory on paper is a great first step, but eradicating ingrained Spanish speech habits requires professional acoustic diagnosis, real-time ear-training, and customized correction.

As Edward Olive, a specialist in pronunciation coaching, British Received Pronunciation (RP), and executive communication in Madrid and online worldwide, I help you transform your English delivery so it sounds flawless, natural, and carries absolute authority.

Want to speak professional English without phonetic details betraying your origin?
Transform your communication with in-person training sessions in Madrid or personalized online classes.