Many students make mistakes when pronouncing "ch" and "sh" sounds. I am a phonetician with 17 years of experience. In this blog post, I explain the difference between these sounds and give you precise instructions on how to pronounce them correctly.

The sound “sh” has a phonetic symbol /ʃ/

Speech organs position:

The tongue tip is near the bottom of the mouth and the air escapes along a passage in the centre of the tongue with lips slightly rounded. This makes [ʃ] sound.

[∫] sound

Spelling variations for the /ʃ/ sound: sh, ch, s, ss

Highlighted bold letters pronounced as /ʃ/

sheep, shirt, push, wish, fashion, cashier

moustache, champagne

pressure, session, Russia, sure, Sean

2. For the sound “ch” with a phonetic symbol /tʃ/ an extra effort is required to add /t/ to /ʃ/.

Speech organs position:

Make the [t] “two” sound at the same time as making the [ʃ] “shall” sound. This makes the [t∫] “church” sound.

Spelling variations for the /tʃ/ sound: ch, tch, t before u

Highlighted bold letters pronounced as/tʃ/

Church, Churchill, chap, which, orchard, achieve

catch, butcher, clutched, matched, Thatcher

literature, posture, moisturise, architecture

The examples are taken from the app Get Rid of your Accent UK1.

The same app is also available on Google Play. The functionality is ideal: read, listen, record and compare your speech with the model. The apps have spelling variations for all English sounds and mouth diagrams to help you create the correct speech organ positions in words, phrases and poetry.
When starting your practice with these apps, first go to “How to use this app” and click on: the difficult sounds typical for your nationality, then click on your nationality to work effectively with a more focused approach.

The apps contain exercises for:
1. Difficult and connected speech patterns
2. Natural flow of speech
3. Intonation and sentence stress
4. Pronunciation and articulation

Accent reduction blog