<Tr> <Th> open </Th> <Td> / aː /: mate </Td> <Td>--</Td> </Tr> <P> The words had very different pronunciations in Middle English from their pronunciations in Modern English . Long i in bite was pronounced as / iː / so Middle English bite sounded like Modern English beet / biːt /; long e in meet was pronounced as / eː / so Middle English meet sounded similar to Modern English mate / meɪt /; long a in mate was pronounced as / aː /, with a vowel like Scottish English ah in father (faːðər) or General American short o in cot / kät /; and long o in boot was pronounced as / oː /, similar to modern oa in General American boat / oʊ / . In addition, Middle English had a long / ɛː / in beat, like modern short e in bed but pronounced longer, and a long / ɔː / in boat . </P> <P> After around 1300, the long vowels of Middle English began changing in pronunciation . The two close vowels, / iː uː /, became diphthongs (vowel breaking), and the other five, / eː ɛː aː ɔː oː /, underwent an increase in tongue height (raising). </P> <P> They occurred over several centuries and can be divided into two phases . The first phase affected the close vowels / iː uː / and the close - mid vowels / eː oː /: / eː oː / were raised to / iː uː /, and / iː uː / became the diphthongs / ei ou / or / əi əu / . The second phase affected the open vowel / aː / and the open - mid vowels / ɛː ɔː /: / aː ɛː ɔː / were raised, in most cases changing to / eː iː oː / . </P>

When did great vowel shift happen in english what was its result in english sounds
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