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VOWELS
(According to stability of articulation)
VOWELS

Monophthongs Diphthongs Diphthongoids
[e] [ɒ:] [ɒ] [i] [I:] [ʌ ] [ǽ ] [a:] [еі] [аі] [аʋ] [ɒі] [əʋ]
[υ ] [u: ] [ ɜ:] [iə ] [υ ə] [ ə ]

(According to the position of the tongue)

Horizontal movement
VOWELS

FRONT FRONT-RETRACTED CENTRAL BACK BACK-ADVANCED
[I:] [e] [I] [i(ə) ] [ʌ ] [ ɜ:] [ ə] [ɒ:] [ɒ] [υ ] [υ(ə)]
[еі] [ǽ ] [ ɜ(υ) ] [( υ) ] [a: ] [ u: ]
[(ə) ]

Vertical movement
VOWELS

CLOSE MID OPEN

Narrow Broad Narrow Broad
[I:] [u:] [i] [υ ][i(ə)] [e] [ə] [ʌ ]

[υə] [ɜ:][ə] [е(і)]

[(ʋ)]
Narrow Broad
[ɒ:][ɒі][ (ə)] [а(і)] [а(ʋ) [ɒ] [a:] [ǽ ]

(According to their length)

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