Don't forget for each sound you need to put double slash or bracket.
/ ʃ / / Ʒ /
[ ʃ ] [Ʒ ]
/ ʃ /
Tongue tip :
Between the teeth
Airstream :
Continuous without interruption
Vocal cord : Not
vibrating
For Example : Thorn,
Method, and Path
/ Ʒ /
Tongue tip :
Between the teeth
Airstream :
Continuous without interruption
Vocal cord :
Vibrating
For Example : Those,
Brother, and Smooth
And here are the video on Youtube to hear clearly each sound
American style
/ ʃ / https://www.youtube.com/watch?v=wINb4HFguck
/ Ʒ / https://www.youtube.com/watch?v=k8ImSmVOSVA
British Style
/ ʃ / https://www.youtube.com/watch?v=iDjAf2AhjRc
/ Ʒ / https://www.youtube.com/watch?v=truPu_ReQ8Y
Let’s next to / m / & / n /