Most of the nonnative people frequently make mistakes while speaking, which is remarkable and sometimes feels ridiculous.
In my past several’s years of experience, I have gone through many student’s pronunciation challenges, where they are pretty good in communication but they face hard while commanding on these sounds
Sound F and V….https://youtu.be/s9-m1UTgDR0
These all practice helps you to achieve advance level. He watch and practice is desperately.