Examples in English are found in the words 'eye', 'hay', 'boy', 'low', and 'cow'. A similar sort of thing happens for the gliding consonants which can further be broken down into semivowels such as 'w...Examples in English are found in the words 'eye', 'hay', 'boy', 'low', and 'cow'. A similar sort of thing happens for the gliding consonants which can further be broken down into semivowels such as 'w' and 'y' and liquids such as 'l' and 'r'. In all of these cases the formants change during the creation of the sound.