VOCAL SKILLS AND HOW TO IMPROVE
12. IF YOU HAVE ISSUES WITH S’S
S often slides back to SH when followed by other consonants, especially TR
Practise the differences between S and SH.
For S, the tip of your tongue is very close to the roof of your mouth, near your top teeth.
For SH, you will feel a bit of pressure in the sides of your tongue.
Go quickly from one to the other:
S-SH
S-SH
S-SH
S-SH
Then quit slowly practise sliding from S to TR.
Your lips should come forward as you move into the R to give room for the tongue to make the proper shape.