Vowels and diphthongs

In the following link you can learn how to pronounce  English vowels.

 https://teachingenglishpalmira.blogspot.com/2018/12/phonetics-vowel-sounds-schwa-sound.html

https://teachingenglishpalmira.blogspot.com/2018/12/long-schwa.html

https://teachingenglishpalmira.blogspot.com/2018/12/phonetics-vowel-sounds.html

https://teachingenglishpalmira.blogspot.com/2018/12/phonetics-vowel-sounds-schwa-sound.html