The vowels are usually separated into two groups: monophthongs and diphthongs. Monophthongs are manufactured with a single articulatory movement (that's why the prefix mono), though diphthongs feature an articulatory alter. Diphthongs have two constituents: a glide (or possibly a semivowel) and also a monophthong. You can find some disagreement about https://angelo5q273.gynoblog.com/27659293/an-unbiased-view-of-korean