Error Pattern: Devoicing. Z sounds like S, D sounds like T, V sounds like F
How to correct: Using linking and vowel length
Practice Steps: Practice two word phrases. Lengthen your vowel on the word with the voiced end sound. Link to the next word.
Does it? Was it?
Had it. Did it.
Have it. Give it.
Repeated phrase practice: Does it ______ (help? cost a lot? repeat?) Did it _____ (happen already? Finish? help?)
Have it _____ (tomorrow, with ice, next time)
Resources: Video for voiced end sounds: https://youtu.be/qKFs43z_sPA
Final Z video: https://youtu.be/Lcy4rUuShf8
Website resources: https://www.speechmodification.com/free/the-most-common-accent-error-patterns-saying-s-instead-of-z-at-the-ends-of-words