Vowel

Types

Monophthong

Types

Frequency

Percentage (%)

Interlingual errors

1 - 21, 2 - 1, 2 - 21, 3 - 25, 4 - 25, 6 - 5, 7 - 24, 8 - 22, 9 - 8, 10 - 23, 10 - 24, 11 - 10, 12 - 24,

98

56.6%

Intralingual errors

2 - 3, 3 - 4, 3 - 6, 4 - 3, 4 - 7, 4 - 12, 5 - 10, 7 - 10, 7 - 12, 8 - 9, 8 - 11, 10 - 11, 10 - 12, 12 - 3

75

43.4%