how to produce sound of letter r and l?

Question

I want to know the ways or tongue position in pronouncing the letter r, l, p, f, and sh?

Answer 1

Check out this site:
http://www.uiowa.edu/%7Eacadtech/phonetics/#
It shows you exactly the tongue position in a diagram with movement, sound and explanation.
It is really neat!

Answer 2

r > the base of the tongue is touching the molars, bends down, then the tip flexes up w/o touching the hard palate

l > tip of tongue touches alveolar ridge or front teeth

p&f > tongue lays flat at bottum of mouth

sh > tongue simultaneously touches palate and while laying flat tongue touches inferior alveolar ridge