How can we have perfect English pronunciation? It can be easy if you follow the correct guidance and read material with all the hard pronunciation errors pointed out to you from the get-go, such as; diphthongs, ‘sts’, and the ‘ed’ suffix etc. It’s vital you get these sounds sorted out from the very beginning.
Down below I’ve taken an excerpt from the BBC and located all the hard bits for you to pronounce, and then highlighted in bold where you need to be extra careful with diphthongs etc. Plus I’ve colour-coded all the ‘ed’ suffixes so you’ll know how to produce the correct sounds by the colour of the suffixes.