and r 5 Palatalveolar Review of Related Theories
researcher sees the characteristic of each class to determine the group where the verb should be. The examination process starts from class I. In class I, the vowel
sound is a dipthong so is class II. Thus, “sing” surely does not belong to class I or II. In class III, the vowel is followed by a sonorant. Sonorant sounds are: nasal
and liquid. The sound after ɪ is a nasal ŋ. Thus, the verb sing belong to this
class. After getting all verbs in the group, the present researcher will make some subclasses based on the vowel sound of each class. It will result in one class will
have some subclass. Taken for an example is class III. Besides “sing”, the verb “send” is also a member of class III with phonetic transcription send. The vowel
sound is e. Getting those two different vowel sounds, it is clear that there will be at least two subclasses in class III.
Following this, in answering the second research question, the present researcher will see the environment of the stem vowel which happens to be the
initial and final sound to see a general environment shared based on the sequence of the changing.
Taken for an example is the verb “sing”. Using the phonetic transcription, the sequence from inifinitive until past participle is s
ɪŋ - sæŋ - s
ʌŋ. Based on the phonetic transcription, the initial sound of it is s and the final sound of it is
ŋ. Then, a formula is composed ɪ æ ʌ s_ŋ. In the
answer of second research question, the subclass of the answer of the first research question will be developed into several subclasses. Taken for an example
is the vowel sound ɪ which has some sequences such as ɪ - æ - ʌ, ɪ - ɪ - ɪ,
and ɪ - æ - ʌ. Examining each member of each subclass, the present researcher
tries to make generalization of the environment.
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